Home / 136,124.02-187,854.40-75,697.20

Finding the Fourth Proportional to 136,124.02, 187,854.40 and 75,697.20

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Solution

The fourth proportional to 136,124.02, 187,854.40 and 75,697.20 is: 104,463.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,124.02 : 187,854.40 = 75,697.20 : x
  2. Step 2: Convert to fraction form
    136,124.02/187,854.40 = 75,697.20/x
  3. Step 3: Cross multiply
    136,124.02x = 187,854.40 × 75,697.20
  4. Step 4: Simplify right side
    136,124.02x = 14,220,052,087.68
  5. Step 5: Solve for x
    x = 14,220,052,087.68/136,124.02
  6. Step 6: Final answer
    x = 104,463.94

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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.