Home / 107,138.03-147,840.53-59,387.31

Finding the Fourth Proportional to 107,138.03, 147,840.53 and 59,387.31

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Solution

The fourth proportional to 107,138.03, 147,840.53 and 59,387.31 is: 81,948.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,138.03 : 147,840.53 = 59,387.31 : x
  2. Step 2: Convert to fraction form
    107,138.03/147,840.53 = 59,387.31/x
  3. Step 3: Cross multiply
    107,138.03x = 147,840.53 × 59,387.31
  4. Step 4: Simplify right side
    107,138.03x = 8,779,851,088.74
  5. Step 5: Solve for x
    x = 8,779,851,088.74/107,138.03
  6. Step 6: Final answer
    x = 81,948.97

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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.