Home / 103,829.60-155,614.80-76,095.20

Finding the Fourth Proportional to 103,829.60, 155,614.80 and 76,095.20

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Solution

The fourth proportional to 103,829.60, 155,614.80 and 76,095.20 is: 114,047.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,829.60 : 155,614.80 = 76,095.20 : x
  2. Step 2: Convert to fraction form
    103,829.60/155,614.80 = 76,095.20/x
  3. Step 3: Cross multiply
    103,829.60x = 155,614.80 × 76,095.20
  4. Step 4: Simplify right side
    103,829.60x = 11,841,539,328.96
  5. Step 5: Solve for x
    x = 11,841,539,328.96/103,829.60
  6. Step 6: Final answer
    x = 114,047.82

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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.