Home / 212,144.95-292,687.18-131,543.47

Finding the Fourth Proportional to 212,144.95, 292,687.18 and 131,543.47

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Solution

The fourth proportional to 212,144.95, 292,687.18 and 131,543.47 is: 181,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,144.95 : 292,687.18 = 131,543.47 : x
  2. Step 2: Convert to fraction form
    212,144.95/292,687.18 = 131,543.47/x
  3. Step 3: Cross multiply
    212,144.95x = 292,687.18 × 131,543.47
  4. Step 4: Simplify right side
    212,144.95x = 38,501,087,281.71
  5. Step 5: Solve for x
    x = 38,501,087,281.71/212,144.95
  6. Step 6: Final answer
    x = 181,484.82

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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.