Home / 127,620.09-176,113.98-71,031.47

Finding the Fourth Proportional to 127,620.09, 176,113.98 and 71,031.47

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Solution

The fourth proportional to 127,620.09, 176,113.98 and 71,031.47 is: 98,022.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,620.09 : 176,113.98 = 71,031.47 : x
  2. Step 2: Convert to fraction form
    127,620.09/176,113.98 = 71,031.47/x
  3. Step 3: Cross multiply
    127,620.09x = 176,113.98 × 71,031.47
  4. Step 4: Simplify right side
    127,620.09x = 12,509,634,006.38
  5. Step 5: Solve for x
    x = 12,509,634,006.38/127,620.09
  6. Step 6: Final answer
    x = 98,022.45

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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.