Home / 124,710.40-187,084.05-45,818.49

Finding the Fourth Proportional to 124,710.40, 187,084.05 and 45,818.49

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Solution

The fourth proportional to 124,710.40, 187,084.05 and 45,818.49 is: 68,734.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,710.40 : 187,084.05 = 45,818.49 : x
  2. Step 2: Convert to fraction form
    124,710.40/187,084.05 = 45,818.49/x
  3. Step 3: Cross multiply
    124,710.40x = 187,084.05 × 45,818.49
  4. Step 4: Simplify right side
    124,710.40x = 8,571,909,203.83
  5. Step 5: Solve for x
    x = 8,571,909,203.83/124,710.40
  6. Step 6: Final answer
    x = 68,734.52

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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.