Home / 112,381.66-155,091.42-64,635.07

Finding the Fourth Proportional to 112,381.66, 155,091.42 and 64,635.07

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Solution

The fourth proportional to 112,381.66, 155,091.42 and 64,635.07 is: 89,199.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,381.66 : 155,091.42 = 64,635.07 : x
  2. Step 2: Convert to fraction form
    112,381.66/155,091.42 = 64,635.07/x
  3. Step 3: Cross multiply
    112,381.66x = 155,091.42 × 64,635.07
  4. Step 4: Simplify right side
    112,381.66x = 10,024,344,788.10
  5. Step 5: Solve for x
    x = 10,024,344,788.10/112,381.66
  6. Step 6: Final answer
    x = 89,199.12

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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.