Home / 100,244.16-138,315.41-59,421.16

Finding the Fourth Proportional to 100,244.16, 138,315.41 and 59,421.16

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Solution

The fourth proportional to 100,244.16, 138,315.41 and 59,421.16 is: 81,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,244.16 : 138,315.41 = 59,421.16 : x
  2. Step 2: Convert to fraction form
    100,244.16/138,315.41 = 59,421.16/x
  3. Step 3: Cross multiply
    100,244.16x = 138,315.41 × 59,421.16
  4. Step 4: Simplify right side
    100,244.16x = 8,218,861,267.95
  5. Step 5: Solve for x
    x = 8,218,861,267.95/100,244.16
  6. Step 6: Final answer
    x = 81,988.43

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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.