Home / 156,696.90-235,045.35-51,519.30

Finding the Fourth Proportional to 156,696.90, 235,045.35 and 51,519.30

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Solution

The fourth proportional to 156,696.90, 235,045.35 and 51,519.30 is: 77,278.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,696.90 : 235,045.35 = 51,519.30 : x
  2. Step 2: Convert to fraction form
    156,696.90/235,045.35 = 51,519.30/x
  3. Step 3: Cross multiply
    156,696.90x = 235,045.35 × 51,519.30
  4. Step 4: Simplify right side
    156,696.90x = 12,109,371,900.26
  5. Step 5: Solve for x
    x = 12,109,371,900.26/156,696.90
  6. Step 6: Final answer
    x = 77,278.95

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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.