Home / 125,012.18-172,516.95-68,423.55

Finding the Fourth Proportional to 125,012.18, 172,516.95 and 68,423.55

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Solution

The fourth proportional to 125,012.18, 172,516.95 and 68,423.55 is: 94,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,012.18 : 172,516.95 = 68,423.55 : x
  2. Step 2: Convert to fraction form
    125,012.18/172,516.95 = 68,423.55/x
  3. Step 3: Cross multiply
    125,012.18x = 172,516.95 × 68,423.55
  4. Step 4: Simplify right side
    125,012.18x = 11,804,222,154.17
  5. Step 5: Solve for x
    x = 11,804,222,154.17/125,012.18
  6. Step 6: Final answer
    x = 94,424.58

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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.