Home / 145,266.14-200,445.45-81,591.74

Finding the Fourth Proportional to 145,266.14, 200,445.45 and 81,591.74

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Solution

The fourth proportional to 145,266.14, 200,445.45 and 81,591.74 is: 112,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,266.14 : 200,445.45 = 81,591.74 : x
  2. Step 2: Convert to fraction form
    145,266.14/200,445.45 = 81,591.74/x
  3. Step 3: Cross multiply
    145,266.14x = 200,445.45 × 81,591.74
  4. Step 4: Simplify right side
    145,266.14x = 16,354,693,040.58
  5. Step 5: Solve for x
    x = 16,354,693,040.58/145,266.14
  6. Step 6: Final answer
    x = 112,584.34

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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.