Home / 113,409.12-156,510.72-63,109.20

Finding the Fourth Proportional to 113,409.12, 156,510.72 and 63,109.20

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Solution

The fourth proportional to 113,409.12, 156,510.72 and 63,109.20 is: 87,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,409.12 : 156,510.72 = 63,109.20 : x
  2. Step 2: Convert to fraction form
    113,409.12/156,510.72 = 63,109.20/x
  3. Step 3: Cross multiply
    113,409.12x = 156,510.72 × 63,109.20
  4. Step 4: Simplify right side
    113,409.12x = 9,877,266,330.62
  5. Step 5: Solve for x
    x = 9,877,266,330.62/113,409.12
  6. Step 6: Final answer
    x = 87,094.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.