Home / 109,878.59-151,361.03-93,693.20

Finding the Fourth Proportional to 109,878.59, 151,361.03 and 93,693.20

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Solution

The fourth proportional to 109,878.59, 151,361.03 and 93,693.20 is: 129,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,878.59 : 151,361.03 = 93,693.20 : x
  2. Step 2: Convert to fraction form
    109,878.59/151,361.03 = 93,693.20/x
  3. Step 3: Cross multiply
    109,878.59x = 151,361.03 × 93,693.20
  4. Step 4: Simplify right side
    109,878.59x = 14,181,498,030.72
  5. Step 5: Solve for x
    x = 14,181,498,030.72/109,878.59
  6. Step 6: Final answer
    x = 129,065.16

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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.