Home / 99,130.59-148,725.05-39,935.79

Finding the Fourth Proportional to 99,130.59, 148,725.05 and 39,935.79

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Solution

The fourth proportional to 99,130.59, 148,725.05 and 39,935.79 is: 59,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,130.59 : 148,725.05 = 39,935.79 : x
  2. Step 2: Convert to fraction form
    99,130.59/148,725.05 = 39,935.79/x
  3. Step 3: Cross multiply
    99,130.59x = 148,725.05 × 39,935.79
  4. Step 4: Simplify right side
    99,130.59x = 5,939,452,164.86
  5. Step 5: Solve for x
    x = 5,939,452,164.86/99,130.59
  6. Step 6: Final answer
    x = 59,915.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.