Home / 130,665.20-180,319.08-74,077.52

Finding the Fourth Proportional to 130,665.20, 180,319.08 and 74,077.52

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Solution

The fourth proportional to 130,665.20, 180,319.08 and 74,077.52 is: 102,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,665.20 : 180,319.08 = 74,077.52 : x
  2. Step 2: Convert to fraction form
    130,665.20/180,319.08 = 74,077.52/x
  3. Step 3: Cross multiply
    130,665.20x = 180,319.08 × 74,077.52
  4. Step 4: Simplify right side
    130,665.20x = 13,357,590,255.08
  5. Step 5: Solve for x
    x = 13,357,590,255.08/130,665.20
  6. Step 6: Final answer
    x = 102,227.60

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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.