Home / 113,123.76-155,981.40-72,232.33

Finding the Fourth Proportional to 113,123.76, 155,981.40 and 72,232.33

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Solution

The fourth proportional to 113,123.76, 155,981.40 and 72,232.33 is: 99,598.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,123.76 : 155,981.40 = 72,232.33 : x
  2. Step 2: Convert to fraction form
    113,123.76/155,981.40 = 72,232.33/x
  3. Step 3: Cross multiply
    113,123.76x = 155,981.40 × 72,232.33
  4. Step 4: Simplify right side
    113,123.76x = 11,266,899,958.66
  5. Step 5: Solve for x
    x = 11,266,899,958.66/113,123.76
  6. Step 6: Final answer
    x = 99,598.00

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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.