Home / 130,943.50-180,693.52-77,216.20

Finding the Fourth Proportional to 130,943.50, 180,693.52 and 77,216.20

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Solution

The fourth proportional to 130,943.50, 180,693.52 and 77,216.20 is: 106,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,943.50 : 180,693.52 = 77,216.20 : x
  2. Step 2: Convert to fraction form
    130,943.50/180,693.52 = 77,216.20/x
  3. Step 3: Cross multiply
    130,943.50x = 180,693.52 × 77,216.20
  4. Step 4: Simplify right side
    130,943.50x = 13,952,466,979.02
  5. Step 5: Solve for x
    x = 13,952,466,979.02/130,943.50
  6. Step 6: Final answer
    x = 106,553.34

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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.