Home / 112,666.43-155,487.20-64,922.87

Finding the Fourth Proportional to 112,666.43, 155,487.20 and 64,922.87

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Solution

The fourth proportional to 112,666.43, 155,487.20 and 64,922.87 is: 89,597.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,666.43 : 155,487.20 = 64,922.87 : x
  2. Step 2: Convert to fraction form
    112,666.43/155,487.20 = 64,922.87/x
  3. Step 3: Cross multiply
    112,666.43x = 155,487.20 × 64,922.87
  4. Step 4: Simplify right side
    112,666.43x = 10,094,674,170.21
  5. Step 5: Solve for x
    x = 10,094,674,170.21/112,666.43
  6. Step 6: Final answer
    x = 89,597.89

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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.