Home / 127,081.74-175,378.29-76,102.77

Finding the Fourth Proportional to 127,081.74, 175,378.29 and 76,102.77

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Solution

The fourth proportional to 127,081.74, 175,378.29 and 76,102.77 is: 105,025.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,081.74 : 175,378.29 = 76,102.77 : x
  2. Step 2: Convert to fraction form
    127,081.74/175,378.29 = 76,102.77/x
  3. Step 3: Cross multiply
    127,081.74x = 175,378.29 × 76,102.77
  4. Step 4: Simplify right side
    127,081.74x = 13,346,773,666.86
  5. Step 5: Solve for x
    x = 13,346,773,666.86/127,081.74
  6. Step 6: Final answer
    x = 105,025.11

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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.