Home / 157,173.32-216,895.38-90,101

Finding the Fourth Proportional to 157,173.32, 216,895.38 and 90,101

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Solution

The fourth proportional to 157,173.32, 216,895.38 and 90,101 is: 124,337.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,173.32 : 216,895.38 = 90,101 : x
  2. Step 2: Convert to fraction form
    157,173.32/216,895.38 = 90,101/x
  3. Step 3: Cross multiply
    157,173.32x = 216,895.38 × 90,101
  4. Step 4: Simplify right side
    157,173.32x = 19,542,490,633.38
  5. Step 5: Solve for x
    x = 19,542,490,633.38/157,173.32
  6. Step 6: Final answer
    x = 124,337.20

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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.