Home / 112,590.16-155,195.76-88,678.96

Finding the Fourth Proportional to 112,590.16, 155,195.76 and 88,678.96

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Solution

The fourth proportional to 112,590.16, 155,195.76 and 88,678.96 is: 122,236.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,590.16 : 155,195.76 = 88,678.96 : x
  2. Step 2: Convert to fraction form
    112,590.16/155,195.76 = 88,678.96/x
  3. Step 3: Cross multiply
    112,590.16x = 155,195.76 × 88,678.96
  4. Step 4: Simplify right side
    112,590.16x = 13,762,598,537.77
  5. Step 5: Solve for x
    x = 13,762,598,537.77/112,590.16
  6. Step 6: Final answer
    x = 122,236.25

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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.