Home / 145,643.04-218,184.71-89,318.97

Finding the Fourth Proportional to 145,643.04, 218,184.71 and 89,318.97

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Solution

The fourth proportional to 145,643.04, 218,184.71 and 89,318.97 is: 133,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,643.04 : 218,184.71 = 89,318.97 : x
  2. Step 2: Convert to fraction form
    145,643.04/218,184.71 = 89,318.97/x
  3. Step 3: Cross multiply
    145,643.04x = 218,184.71 × 89,318.97
  4. Step 4: Simplify right side
    145,643.04x = 19,488,033,120.35
  5. Step 5: Solve for x
    x = 19,488,033,120.35/145,643.04
  6. Step 6: Final answer
    x = 133,806.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.