Home / 130,490.28-180,070.56-73,902.06

Finding the Fourth Proportional to 130,490.28, 180,070.56 and 73,902.06

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Solution

The fourth proportional to 130,490.28, 180,070.56 and 73,902.06 is: 101,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,490.28 : 180,070.56 = 73,902.06 : x
  2. Step 2: Convert to fraction form
    130,490.28/180,070.56 = 73,902.06/x
  3. Step 3: Cross multiply
    130,490.28x = 180,070.56 × 73,902.06
  4. Step 4: Simplify right side
    130,490.28x = 13,307,585,329.35
  5. Step 5: Solve for x
    x = 13,307,585,329.35/130,490.28
  6. Step 6: Final answer
    x = 101,981.43

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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.