Home / 127,063.56-175,345.09-78,652.69

Finding the Fourth Proportional to 127,063.56, 175,345.09 and 78,652.69

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Solution

The fourth proportional to 127,063.56, 175,345.09 and 78,652.69 is: 108,539.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,063.56 : 175,345.09 = 78,652.69 : x
  2. Step 2: Convert to fraction form
    127,063.56/175,345.09 = 78,652.69/x
  3. Step 3: Cross multiply
    127,063.56x = 175,345.09 × 78,652.69
  4. Step 4: Simplify right side
    127,063.56x = 13,791,363,006.79
  5. Step 5: Solve for x
    x = 13,791,363,006.79/127,063.56
  6. Step 6: Final answer
    x = 108,539.09

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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.