Home / 145,972.40-218,853.51-89,696.24

Finding the Fourth Proportional to 145,972.40, 218,853.51 and 89,696.24

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Solution

The fourth proportional to 145,972.40, 218,853.51 and 89,696.24 is: 134,479.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.40 : 218,853.51 = 89,696.24 : x
  2. Step 2: Convert to fraction form
    145,972.40/218,853.51 = 89,696.24/x
  3. Step 3: Cross multiply
    145,972.40x = 218,853.51 × 89,696.24
  4. Step 4: Simplify right side
    145,972.40x = 19,630,335,863.53
  5. Step 5: Solve for x
    x = 19,630,335,863.53/145,972.40
  6. Step 6: Final answer
    x = 134,479.78

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1.5x scale

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.