Home / 157,501.40-236,252.10-86,642.60

Finding the Fourth Proportional to 157,501.40, 236,252.10 and 86,642.60

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Solution

The fourth proportional to 157,501.40, 236,252.10 and 86,642.60 is: 129,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,501.40 : 236,252.10 = 86,642.60 : x
  2. Step 2: Convert to fraction form
    157,501.40/236,252.10 = 86,642.60/x
  3. Step 3: Cross multiply
    157,501.40x = 236,252.10 × 86,642.60
  4. Step 4: Simplify right side
    157,501.40x = 20,469,496,199.46
  5. Step 5: Solve for x
    x = 20,469,496,199.46/157,501.40
  6. Step 6: Final answer
    x = 129,963.90

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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.