Home / 84,702.74-127,212.06-74,574.69

Finding the Fourth Proportional to 84,702.74, 127,212.06 and 74,574.69

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Solution

The fourth proportional to 84,702.74, 127,212.06 and 74,574.69 is: 112,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,702.74 : 127,212.06 = 74,574.69 : x
  2. Step 2: Convert to fraction form
    84,702.74/127,212.06 = 74,574.69/x
  3. Step 3: Cross multiply
    84,702.74x = 127,212.06 × 74,574.69
  4. Step 4: Simplify right side
    84,702.74x = 9,486,799,395.91
  5. Step 5: Solve for x
    x = 9,486,799,395.91/84,702.74
  6. Step 6: Final answer
    x = 112,001.10

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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.