Home / 127,781.69-176,339.94-70,423.11

Finding the Fourth Proportional to 127,781.69, 176,339.94 and 70,423.11

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Solution

The fourth proportional to 127,781.69, 176,339.94 and 70,423.11 is: 97,184.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,781.69 : 176,339.94 = 70,423.11 : x
  2. Step 2: Convert to fraction form
    127,781.69/176,339.94 = 70,423.11/x
  3. Step 3: Cross multiply
    127,781.69x = 176,339.94 × 70,423.11
  4. Step 4: Simplify right side
    127,781.69x = 12,418,405,758.20
  5. Step 5: Solve for x
    x = 12,418,405,758.20/127,781.69
  6. Step 6: Final answer
    x = 97,184.55

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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.