Home / 126,470.90-190,034.40-112,036.70

Finding the Fourth Proportional to 126,470.90, 190,034.40 and 112,036.70

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Solution

The fourth proportional to 126,470.90, 190,034.40 and 112,036.70 is: 168,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,470.90 : 190,034.40 = 112,036.70 : x
  2. Step 2: Convert to fraction form
    126,470.90/190,034.40 = 112,036.70/x
  3. Step 3: Cross multiply
    126,470.90x = 190,034.40 × 112,036.70
  4. Step 4: Simplify right side
    126,470.90x = 21,290,827,062.48
  5. Step 5: Solve for x
    x = 21,290,827,062.48/126,470.90
  6. Step 6: Final answer
    x = 168,345.66

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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.