Home / 113,856.10-170,784.15-66,616.90

Finding the Fourth Proportional to 113,856.10, 170,784.15 and 66,616.90

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Solution

The fourth proportional to 113,856.10, 170,784.15 and 66,616.90 is: 99,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,856.10 : 170,784.15 = 66,616.90 : x
  2. Step 2: Convert to fraction form
    113,856.10/170,784.15 = 66,616.90/x
  3. Step 3: Cross multiply
    113,856.10x = 170,784.15 × 66,616.90
  4. Step 4: Simplify right side
    113,856.10x = 11,377,110,642.14
  5. Step 5: Solve for x
    x = 11,377,110,642.14/113,856.10
  6. Step 6: Final answer
    x = 99,925.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.