Home / 127,454.50-175,815.47-76,453.66

Finding the Fourth Proportional to 127,454.50, 175,815.47 and 76,453.66

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Solution

The fourth proportional to 127,454.50, 175,815.47 and 76,453.66 is: 105,463.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,454.50 : 175,815.47 = 76,453.66 : x
  2. Step 2: Convert to fraction form
    127,454.50/175,815.47 = 76,453.66/x
  3. Step 3: Cross multiply
    127,454.50x = 175,815.47 × 76,453.66
  4. Step 4: Simplify right side
    127,454.50x = 13,441,736,166.12
  5. Step 5: Solve for x
    x = 13,441,736,166.12/127,454.50
  6. Step 6: Final answer
    x = 105,463.02

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1.5x scale

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.