Home / 128,152.66-176,851.05-71,566.18

Finding the Fourth Proportional to 128,152.66, 176,851.05 and 71,566.18

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Solution

The fourth proportional to 128,152.66, 176,851.05 and 71,566.18 is: 98,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,152.66 : 176,851.05 = 71,566.18 : x
  2. Step 2: Convert to fraction form
    128,152.66/176,851.05 = 71,566.18/x
  3. Step 3: Cross multiply
    128,152.66x = 176,851.05 × 71,566.18
  4. Step 4: Simplify right side
    128,152.66x = 12,656,554,077.49
  5. Step 5: Solve for x
    x = 12,656,554,077.49/128,152.66
  6. Step 6: Final answer
    x = 98,761.54

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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.