Home / 127,999.36-176,639.16-71,409.52

Finding the Fourth Proportional to 127,999.36, 176,639.16 and 71,409.52

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Solution

The fourth proportional to 127,999.36, 176,639.16 and 71,409.52 is: 98,545.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,999.36 : 176,639.16 = 71,409.52 : x
  2. Step 2: Convert to fraction form
    127,999.36/176,639.16 = 71,409.52/x
  3. Step 3: Cross multiply
    127,999.36x = 176,639.16 × 71,409.52
  4. Step 4: Simplify right side
    127,999.36x = 12,613,717,628.80
  5. Step 5: Solve for x
    x = 12,613,717,628.80/127,999.36
  6. Step 6: Final answer
    x = 98,545.16

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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.