Home / 133,306.16-183,960.42-72,875.40

Finding the Fourth Proportional to 133,306.16, 183,960.42 and 72,875.40

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Solution

The fourth proportional to 133,306.16, 183,960.42 and 72,875.40 is: 100,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,306.16 : 183,960.42 = 72,875.40 : x
  2. Step 2: Convert to fraction form
    133,306.16/183,960.42 = 72,875.40/x
  3. Step 3: Cross multiply
    133,306.16x = 183,960.42 × 72,875.40
  4. Step 4: Simplify right side
    133,306.16x = 13,406,188,228.53
  5. Step 5: Solve for x
    x = 13,406,188,228.53/133,306.16
  6. Step 6: Final answer
    x = 100,566.91

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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.