Home / 145,339.47-200,567.21-81,677.12

Finding the Fourth Proportional to 145,339.47, 200,567.21 and 81,677.12

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Solution

The fourth proportional to 145,339.47, 200,567.21 and 81,677.12 is: 112,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,339.47 : 200,567.21 = 81,677.12 : x
  2. Step 2: Convert to fraction form
    145,339.47/200,567.21 = 81,677.12/x
  3. Step 3: Cross multiply
    145,339.47x = 200,567.21 × 81,677.12
  4. Step 4: Simplify right side
    145,339.47x = 16,381,750,668.01
  5. Step 5: Solve for x
    x = 16,381,750,668.01/145,339.47
  6. Step 6: Final answer
    x = 112,713.71

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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.