Home / 112,303,682.80-168,581,495.40-86,857,500.40

Finding the Fourth Proportional to 112,303,682.80, 168,581,495.40 and 86,857,500.40

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Solution

The fourth proportional to 112,303,682.80, 168,581,495.40 and 86,857,500.40 is: 130,383,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,303,682.80 : 168,581,495.40 = 86,857,500.40 : x
  2. Step 2: Convert to fraction form
    112,303,682.80/168,581,495.40 = 86,857,500.40/x
  3. Step 3: Cross multiply
    112,303,682.80x = 168,581,495.40 × 86,857,500.40
  4. Step 4: Simplify right side
    112,303,682.80x = 14,642,567,304,138,100
  5. Step 5: Solve for x
    x = 14,642,567,304,138,100/112,303,682.80
  6. Step 6: Final answer
    x = 130,383,678.78

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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.