Home / 157,501.90-236,252.85-86,643.10

Finding the Fourth Proportional to 157,501.90, 236,252.85 and 86,643.10

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Solution

The fourth proportional to 157,501.90, 236,252.85 and 86,643.10 is: 129,964.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,501.90 : 236,252.85 = 86,643.10 : x
  2. Step 2: Convert to fraction form
    157,501.90/236,252.85 = 86,643.10/x
  3. Step 3: Cross multiply
    157,501.90x = 236,252.85 × 86,643.10
  4. Step 4: Simplify right side
    157,501.90x = 20,469,679,307.84
  5. Step 5: Solve for x
    x = 20,469,679,307.84/157,501.90
  6. Step 6: Final answer
    x = 129,964.65

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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.