Home / 123,501.95-170,432.71-66,913.32

Finding the Fourth Proportional to 123,501.95, 170,432.71 and 66,913.32

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Solution

The fourth proportional to 123,501.95, 170,432.71 and 66,913.32 is: 92,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,501.95 : 170,432.71 = 66,913.32 : x
  2. Step 2: Convert to fraction form
    123,501.95/170,432.71 = 66,913.32/x
  3. Step 3: Cross multiply
    123,501.95x = 170,432.71 × 66,913.32
  4. Step 4: Simplify right side
    123,501.95x = 11,404,218,934.54
  5. Step 5: Solve for x
    x = 11,404,218,934.54/123,501.95
  6. Step 6: Final answer
    x = 92,340.40

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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.