Home / 158,267.20-218,411.34-86,646.04

Finding the Fourth Proportional to 158,267.20, 218,411.34 and 86,646.04

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Solution

The fourth proportional to 158,267.20, 218,411.34 and 86,646.04 is: 119,572.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,267.20 : 218,411.34 = 86,646.04 : x
  2. Step 2: Convert to fraction form
    158,267.20/218,411.34 = 86,646.04/x
  3. Step 3: Cross multiply
    158,267.20x = 218,411.34 × 86,646.04
  4. Step 4: Simplify right side
    158,267.20x = 18,924,477,702.09
  5. Step 5: Solve for x
    x = 18,924,477,702.09/158,267.20
  6. Step 6: Final answer
    x = 119,572.96

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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.