Home / 127,151.48-175,068.96-107,990.12

Finding the Fourth Proportional to 127,151.48, 175,068.96 and 107,990.12

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Solution

The fourth proportional to 127,151.48, 175,068.96 and 107,990.12 is: 148,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,151.48 : 175,068.96 = 107,990.12 : x
  2. Step 2: Convert to fraction form
    127,151.48/175,068.96 = 107,990.12/x
  3. Step 3: Cross multiply
    127,151.48x = 175,068.96 × 107,990.12
  4. Step 4: Simplify right side
    127,151.48x = 18,905,717,998.68
  5. Step 5: Solve for x
    x = 18,905,717,998.68/127,151.48
  6. Step 6: Final answer
    x = 148,686.57

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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.