Home / 127,655.57-176,161.26-71,066.95

Finding the Fourth Proportional to 127,655.57, 176,161.26 and 71,066.95

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Solution

The fourth proportional to 127,655.57, 176,161.26 and 71,066.95 is: 98,070.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,655.57 : 176,161.26 = 71,066.95 : x
  2. Step 2: Convert to fraction form
    127,655.57/176,161.26 = 71,066.95/x
  3. Step 3: Cross multiply
    127,655.57x = 176,161.26 × 71,066.95
  4. Step 4: Simplify right side
    127,655.57x = 12,519,243,282.45
  5. Step 5: Solve for x
    x = 12,519,243,282.45/127,655.57
  6. Step 6: Final answer
    x = 98,070.48

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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.