Home / 130,597.10-180,224.05-76,915.16

Finding the Fourth Proportional to 130,597.10, 180,224.05 and 76,915.16

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Solution

The fourth proportional to 130,597.10, 180,224.05 and 76,915.16 is: 106,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,597.10 : 180,224.05 = 76,915.16 : x
  2. Step 2: Convert to fraction form
    130,597.10/180,224.05 = 76,915.16/x
  3. Step 3: Cross multiply
    130,597.10x = 180,224.05 × 76,915.16
  4. Step 4: Simplify right side
    130,597.10x = 13,861,961,641.60
  5. Step 5: Solve for x
    x = 13,861,961,641.60/130,597.10
  6. Step 6: Final answer
    x = 106,142.95

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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.