Home / 145,972.66-218,853.90-89,696.50

Finding the Fourth Proportional to 145,972.66, 218,853.90 and 89,696.50

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Solution

The fourth proportional to 145,972.66, 218,853.90 and 89,696.50 is: 134,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.66 : 218,853.90 = 89,696.50 : x
  2. Step 2: Convert to fraction form
    145,972.66/218,853.90 = 89,696.50/x
  3. Step 3: Cross multiply
    145,972.66x = 218,853.90 × 89,696.50
  4. Step 4: Simplify right side
    145,972.66x = 19,630,428,630.58
  5. Step 5: Solve for x
    x = 19,630,428,630.58/145,972.66
  6. Step 6: Final answer
    x = 134,480.17

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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.