Home / 145,294.12-200,512.08-81,632.04

Finding the Fourth Proportional to 145,294.12, 200,512.08 and 81,632.04

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Solution

The fourth proportional to 145,294.12, 200,512.08 and 81,632.04 is: 112,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,294.12 : 200,512.08 = 81,632.04 : x
  2. Step 2: Convert to fraction form
    145,294.12/200,512.08 = 81,632.04/x
  3. Step 3: Cross multiply
    145,294.12x = 200,512.08 × 81,632.04
  4. Step 4: Simplify right side
    145,294.12x = 16,368,210,135.04
  5. Step 5: Solve for x
    x = 16,368,210,135.04/145,294.12
  6. Step 6: Final answer
    x = 112,655.70

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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.