Home / 143,549.52-198,077.22-86,176.68

Finding the Fourth Proportional to 143,549.52, 198,077.22 and 86,176.68

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Solution

The fourth proportional to 143,549.52, 198,077.22 and 86,176.68 is: 118,911.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,549.52 : 198,077.22 = 86,176.68 : x
  2. Step 2: Convert to fraction form
    143,549.52/198,077.22 = 86,176.68/x
  3. Step 3: Cross multiply
    143,549.52x = 198,077.22 × 86,176.68
  4. Step 4: Simplify right side
    143,549.52x = 17,069,637,203.23
  5. Step 5: Solve for x
    x = 17,069,637,203.23/143,549.52
  6. Step 6: Final answer
    x = 118,911.14

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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.