Home / 124,872.90-172,325.52-70,425.78

Finding the Fourth Proportional to 124,872.90, 172,325.52 and 70,425.78

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Solution

The fourth proportional to 124,872.90, 172,325.52 and 70,425.78 is: 97,188.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,872.90 : 172,325.52 = 70,425.78 : x
  2. Step 2: Convert to fraction form
    124,872.90/172,325.52 = 70,425.78/x
  3. Step 3: Cross multiply
    124,872.90x = 172,325.52 × 70,425.78
  4. Step 4: Simplify right side
    124,872.90x = 12,136,159,159.91
  5. Step 5: Solve for x
    x = 12,136,159,159.91/124,872.90
  6. Step 6: Final answer
    x = 97,188.09

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1.5x scale

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.