Home / 127,641.53-176,143.85-70,279.65

Finding the Fourth Proportional to 127,641.53, 176,143.85 and 70,279.65

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Solution

The fourth proportional to 127,641.53, 176,143.85 and 70,279.65 is: 96,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,641.53 : 176,143.85 = 70,279.65 : x
  2. Step 2: Convert to fraction form
    127,641.53/176,143.85 = 70,279.65/x
  3. Step 3: Cross multiply
    127,641.53x = 176,143.85 × 70,279.65
  4. Step 4: Simplify right side
    127,641.53x = 12,379,328,127.65
  5. Step 5: Solve for x
    x = 12,379,328,127.65/127,641.53
  6. Step 6: Final answer
    x = 96,985.11

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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.