Home / 146,840.50-202,622.70-86,397.85

Finding the Fourth Proportional to 146,840.50, 202,622.70 and 86,397.85

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Solution

The fourth proportional to 146,840.50, 202,622.70 and 86,397.85 is: 119,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,840.50 : 202,622.70 = 86,397.85 : x
  2. Step 2: Convert to fraction form
    146,840.50/202,622.70 = 86,397.85/x
  3. Step 3: Cross multiply
    146,840.50x = 202,622.70 × 86,397.85
  4. Step 4: Simplify right side
    146,840.50x = 17,506,165,641.20
  5. Step 5: Solve for x
    x = 17,506,165,641.20/146,840.50
  6. Step 6: Final answer
    x = 119,218.92

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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.