Home / 130,122.53-179,614.29-89,421.42

Finding the Fourth Proportional to 130,122.53, 179,614.29 and 89,421.42

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Solution

The fourth proportional to 130,122.53, 179,614.29 and 89,421.42 is: 123,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,122.53 : 179,614.29 = 89,421.42 : x
  2. Step 2: Convert to fraction form
    130,122.53/179,614.29 = 89,421.42/x
  3. Step 3: Cross multiply
    130,122.53x = 179,614.29 × 89,421.42
  4. Step 4: Simplify right side
    130,122.53x = 16,061,364,864.09
  5. Step 5: Solve for x
    x = 16,061,364,864.09/130,122.53
  6. Step 6: Final answer
    x = 123,432.63

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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.