Home / 112,702.62-155,340.65-89,968.74

Finding the Fourth Proportional to 112,702.62, 155,340.65 and 89,968.74

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Solution

The fourth proportional to 112,702.62, 155,340.65 and 89,968.74 is: 124,006.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,702.62 : 155,340.65 = 89,968.74 : x
  2. Step 2: Convert to fraction form
    112,702.62/155,340.65 = 89,968.74/x
  3. Step 3: Cross multiply
    112,702.62x = 155,340.65 × 89,968.74
  4. Step 4: Simplify right side
    112,702.62x = 13,975,802,551.28
  5. Step 5: Solve for x
    x = 13,975,802,551.28/112,702.62
  6. Step 6: Final answer
    x = 124,006.01

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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.