Home / 91,147.20-136,502.10-44,345.40

Finding the Fourth Proportional to 91,147.20, 136,502.10 and 44,345.40

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Solution

The fourth proportional to 91,147.20, 136,502.10 and 44,345.40 is: 66,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,147.20 : 136,502.10 = 44,345.40 : x
  2. Step 2: Convert to fraction form
    91,147.20/136,502.10 = 44,345.40/x
  3. Step 3: Cross multiply
    91,147.20x = 136,502.10 × 44,345.40
  4. Step 4: Simplify right side
    91,147.20x = 6,053,240,225.34
  5. Step 5: Solve for x
    x = 6,053,240,225.34/91,147.20
  6. Step 6: Final answer
    x = 66,411.70

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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.