Home / 156,987.52-216,638.04-89,010.70

Finding the Fourth Proportional to 156,987.52, 216,638.04 and 89,010.70

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Solution

The fourth proportional to 156,987.52, 216,638.04 and 89,010.70 is: 122,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.52 : 216,638.04 = 89,010.70 : x
  2. Step 2: Convert to fraction form
    156,987.52/216,638.04 = 89,010.70/x
  3. Step 3: Cross multiply
    156,987.52x = 216,638.04 × 89,010.70
  4. Step 4: Simplify right side
    156,987.52x = 19,283,103,587.03
  5. Step 5: Solve for x
    x = 19,283,103,587.03/156,987.52
  6. Step 6: Final answer
    x = 122,832.08

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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.