Home / 127,854.44-176,421.96-77,543.72

Finding the Fourth Proportional to 127,854.44, 176,421.96 and 77,543.72

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Solution

The fourth proportional to 127,854.44, 176,421.96 and 77,543.72 is: 106,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,854.44 : 176,421.96 = 77,543.72 : x
  2. Step 2: Convert to fraction form
    127,854.44/176,421.96 = 77,543.72/x
  3. Step 3: Cross multiply
    127,854.44x = 176,421.96 × 77,543.72
  4. Step 4: Simplify right side
    127,854.44x = 13,680,415,068.09
  5. Step 5: Solve for x
    x = 13,680,415,068.09/127,854.44
  6. Step 6: Final answer
    x = 106,999.92

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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.