Home / 123,216.18-170,038.52-66,627.56

Finding the Fourth Proportional to 123,216.18, 170,038.52 and 66,627.56

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Solution

The fourth proportional to 123,216.18, 170,038.52 and 66,627.56 is: 91,946.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,216.18 : 170,038.52 = 66,627.56 : x
  2. Step 2: Convert to fraction form
    123,216.18/170,038.52 = 66,627.56/x
  3. Step 3: Cross multiply
    123,216.18x = 170,038.52 × 66,627.56
  4. Step 4: Simplify right side
    123,216.18x = 11,329,251,693.61
  5. Step 5: Solve for x
    x = 11,329,251,693.61/123,216.18
  6. Step 6: Final answer
    x = 91,946.14

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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.