Home / 133,285.59-183,934.09-72,856.47

Finding the Fourth Proportional to 133,285.59, 183,934.09 and 72,856.47

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Solution

The fourth proportional to 133,285.59, 183,934.09 and 72,856.47 is: 100,541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,285.59 : 183,934.09 = 72,856.47 : x
  2. Step 2: Convert to fraction form
    133,285.59/183,934.09 = 72,856.47/x
  3. Step 3: Cross multiply
    133,285.59x = 183,934.09 × 72,856.47
  4. Step 4: Simplify right side
    133,285.59x = 13,400,788,601.13
  5. Step 5: Solve for x
    x = 13,400,788,601.13/133,285.59
  6. Step 6: Final answer
    x = 100,541.92

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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.