Home / 130,658.52-180,305.28-74,069.76

Finding the Fourth Proportional to 130,658.52, 180,305.28 and 74,069.76

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Solution

The fourth proportional to 130,658.52, 180,305.28 and 74,069.76 is: 102,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,658.52 : 180,305.28 = 74,069.76 : x
  2. Step 2: Convert to fraction form
    130,658.52/180,305.28 = 74,069.76/x
  3. Step 3: Cross multiply
    130,658.52x = 180,305.28 × 74,069.76
  4. Step 4: Simplify right side
    130,658.52x = 13,355,168,816.33
  5. Step 5: Solve for x
    x = 13,355,168,816.33/130,658.52
  6. Step 6: Final answer
    x = 102,214.30

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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.