Home / 140,038.39-193,269.59-79,618.15

Finding the Fourth Proportional to 140,038.39, 193,269.59 and 79,618.15

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Solution

The fourth proportional to 140,038.39, 193,269.59 and 79,618.15 is: 109,882.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,038.39 : 193,269.59 = 79,618.15 : x
  2. Step 2: Convert to fraction form
    140,038.39/193,269.59 = 79,618.15/x
  3. Step 3: Cross multiply
    140,038.39x = 193,269.59 × 79,618.15
  4. Step 4: Simplify right side
    140,038.39x = 15,387,767,207.06
  5. Step 5: Solve for x
    x = 15,387,767,207.06/140,038.39
  6. Step 6: Final answer
    x = 109,882.49

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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.