Home / 130,018.43-179,412.06-89,217.55

Finding the Fourth Proportional to 130,018.43, 179,412.06 and 89,217.55

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Solution

The fourth proportional to 130,018.43, 179,412.06 and 89,217.55 is: 123,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,018.43 : 179,412.06 = 89,217.55 : x
  2. Step 2: Convert to fraction form
    130,018.43/179,412.06 = 89,217.55/x
  3. Step 3: Cross multiply
    130,018.43x = 179,412.06 × 89,217.55
  4. Step 4: Simplify right side
    130,018.43x = 16,006,704,433.65
  5. Step 5: Solve for x
    x = 16,006,704,433.65/130,018.43
  6. Step 6: Final answer
    x = 123,111.04

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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.