Home / 212,146.95-292,689.94-131,545.47

Finding the Fourth Proportional to 212,146.95, 292,689.94 and 131,545.47

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Solution

The fourth proportional to 212,146.95, 292,689.94 and 131,545.47 is: 181,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,146.95 : 292,689.94 = 131,545.47 : x
  2. Step 2: Convert to fraction form
    212,146.95/292,689.94 = 131,545.47/x
  3. Step 3: Cross multiply
    212,146.95x = 292,689.94 × 131,545.47
  4. Step 4: Simplify right side
    212,146.95x = 38,502,035,721.57
  5. Step 5: Solve for x
    x = 38,502,035,721.57/212,146.95
  6. Step 6: Final answer
    x = 181,487.58

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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.