Home / 147,931.36-204,159.56-87,521.44

Finding the Fourth Proportional to 147,931.36, 204,159.56 and 87,521.44

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Solution

The fourth proportional to 147,931.36, 204,159.56 and 87,521.44 is: 120,788.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,931.36 : 204,159.56 = 87,521.44 : x
  2. Step 2: Convert to fraction form
    147,931.36/204,159.56 = 87,521.44/x
  3. Step 3: Cross multiply
    147,931.36x = 204,159.56 × 87,521.44
  4. Step 4: Simplify right side
    147,931.36x = 17,868,338,680.97
  5. Step 5: Solve for x
    x = 17,868,338,680.97/147,931.36
  6. Step 6: Final answer
    x = 120,788.04

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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.