Home / 145,167.14-199,915.89-130,703.78

Finding the Fourth Proportional to 145,167.14, 199,915.89 and 130,703.78

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Solution

The fourth proportional to 145,167.14, 199,915.89 and 130,703.78 is: 179,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167.14 : 199,915.89 = 130,703.78 : x
  2. Step 2: Convert to fraction form
    145,167.14/199,915.89 = 130,703.78/x
  3. Step 3: Cross multiply
    145,167.14x = 199,915.89 × 130,703.78
  4. Step 4: Simplify right side
    145,167.14x = 26,129,762,505.06
  5. Step 5: Solve for x
    x = 26,129,762,505.06/145,167.14
  6. Step 6: Final answer
    x = 179,997.78

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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.