Home / 130,534.14-180,140.78-73,945.52

Finding the Fourth Proportional to 130,534.14, 180,140.78 and 73,945.52

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Solution

The fourth proportional to 130,534.14, 180,140.78 and 73,945.52 is: 102,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,534.14 : 180,140.78 = 73,945.52 : x
  2. Step 2: Convert to fraction form
    130,534.14/180,140.78 = 73,945.52/x
  3. Step 3: Cross multiply
    130,534.14x = 180,140.78 × 73,945.52
  4. Step 4: Simplify right side
    130,534.14x = 13,320,602,934.47
  5. Step 5: Solve for x
    x = 13,320,602,934.47/130,534.14
  6. Step 6: Final answer
    x = 102,046.89

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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.