Home / 145,417.53-200,672.27-81,759.42

Finding the Fourth Proportional to 145,417.53, 200,672.27 and 81,759.42

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Solution

The fourth proportional to 145,417.53, 200,672.27 and 81,759.42 is: 112,825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.53 : 200,672.27 = 81,759.42 : x
  2. Step 2: Convert to fraction form
    145,417.53/200,672.27 = 81,759.42/x
  3. Step 3: Cross multiply
    145,417.53x = 200,672.27 × 81,759.42
  4. Step 4: Simplify right side
    145,417.53x = 16,406,847,996.49
  5. Step 5: Solve for x
    x = 16,406,847,996.49/145,417.53
  6. Step 6: Final answer
    x = 112,825.79

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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.