Home / 112,688,375.20-169,032,562.80-87,147,714.40

Finding the Fourth Proportional to 112,688,375.20, 169,032,562.80 and 87,147,714.40

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Solution

The fourth proportional to 112,688,375.20, 169,032,562.80 and 87,147,714.40 is: 130,721,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,688,375.20 : 169,032,562.80 = 87,147,714.40 : x
  2. Step 2: Convert to fraction form
    112,688,375.20/169,032,562.80 = 87,147,714.40/x
  3. Step 3: Cross multiply
    112,688,375.20x = 169,032,562.80 × 87,147,714.40
  4. Step 4: Simplify right side
    112,688,375.20x = 14,730,801,507,194,466
  5. Step 5: Solve for x
    x = 14,730,801,507,194,466/112,688,375.20
  6. Step 6: Final answer
    x = 130,721,571.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.