Home / 124,988.58-172,304.64-89,116.20

Finding the Fourth Proportional to 124,988.58, 172,304.64 and 89,116.20

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Solution

The fourth proportional to 124,988.58, 172,304.64 and 89,116.20 is: 122,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,988.58 : 172,304.64 = 89,116.20 : x
  2. Step 2: Convert to fraction form
    124,988.58/172,304.64 = 89,116.20/x
  3. Step 3: Cross multiply
    124,988.58x = 172,304.64 × 89,116.20
  4. Step 4: Simplify right side
    124,988.58x = 15,355,134,759.17
  5. Step 5: Solve for x
    x = 15,355,134,759.17/124,988.58
  6. Step 6: Final answer
    x = 122,852.30

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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.