Home / 102,522.90-153,806.58-31,445.76

Finding the Fourth Proportional to 102,522.90, 153,806.58 and 31,445.76

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Solution

The fourth proportional to 102,522.90, 153,806.58 and 31,445.76 is: 47,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,522.90 : 153,806.58 = 31,445.76 : x
  2. Step 2: Convert to fraction form
    102,522.90/153,806.58 = 31,445.76/x
  3. Step 3: Cross multiply
    102,522.90x = 153,806.58 × 31,445.76
  4. Step 4: Simplify right side
    102,522.90x = 4,836,564,801.10
  5. Step 5: Solve for x
    x = 4,836,564,801.10/102,522.90
  6. Step 6: Final answer
    x = 47,175.46

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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.