Home / 157,138.42-216,855.92-89,158.26

Finding the Fourth Proportional to 157,138.42, 216,855.92 and 89,158.26

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Solution

The fourth proportional to 157,138.42, 216,855.92 and 89,158.26 is: 123,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,138.42 : 216,855.92 = 89,158.26 : x
  2. Step 2: Convert to fraction form
    157,138.42/216,855.92 = 89,158.26/x
  3. Step 3: Cross multiply
    157,138.42x = 216,855.92 × 89,158.26
  4. Step 4: Simplify right side
    157,138.42x = 19,334,496,497.90
  5. Step 5: Solve for x
    x = 19,334,496,497.90/157,138.42
  6. Step 6: Final answer
    x = 123,041.18

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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.