Home / 127,890.54-176,482.53-71,290.98

Finding the Fourth Proportional to 127,890.54, 176,482.53 and 71,290.98

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Solution

The fourth proportional to 127,890.54, 176,482.53 and 71,290.98 is: 98,377.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,890.54 : 176,482.53 = 71,290.98 : x
  2. Step 2: Convert to fraction form
    127,890.54/176,482.53 = 71,290.98/x
  3. Step 3: Cross multiply
    127,890.54x = 176,482.53 × 71,290.98
  4. Step 4: Simplify right side
    127,890.54x = 12,581,612,516.58
  5. Step 5: Solve for x
    x = 12,581,612,516.58/127,890.54
  6. Step 6: Final answer
    x = 98,377.98

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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.