Home / 157,417.20-236,125.80-82,508.40

Finding the Fourth Proportional to 157,417.20, 236,125.80 and 82,508.40

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Solution

The fourth proportional to 157,417.20, 236,125.80 and 82,508.40 is: 123,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,417.20 : 236,125.80 = 82,508.40 : x
  2. Step 2: Convert to fraction form
    157,417.20/236,125.80 = 82,508.40/x
  3. Step 3: Cross multiply
    157,417.20x = 236,125.80 × 82,508.40
  4. Step 4: Simplify right side
    157,417.20x = 19,482,361,956.72
  5. Step 5: Solve for x
    x = 19,482,361,956.72/157,417.20
  6. Step 6: Final answer
    x = 123,762.60

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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.