Home / 123,440.16-170,347.14-66,851.40

Finding the Fourth Proportional to 123,440.16, 170,347.14 and 66,851.40

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Solution

The fourth proportional to 123,440.16, 170,347.14 and 66,851.40 is: 92,254.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,440.16 : 170,347.14 = 66,851.40 : x
  2. Step 2: Convert to fraction form
    123,440.16/170,347.14 = 66,851.40/x
  3. Step 3: Cross multiply
    123,440.16x = 170,347.14 × 66,851.40
  4. Step 4: Simplify right side
    123,440.16x = 11,387,944,795.00
  5. Step 5: Solve for x
    x = 11,387,944,795.00/123,440.16
  6. Step 6: Final answer
    x = 92,254.78

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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.