Home / 138,017.66-206,002.58-118,960.70

Finding the Fourth Proportional to 138,017.66, 206,002.58 and 118,960.70

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Solution

The fourth proportional to 138,017.66, 206,002.58 and 118,960.70 is: 177,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,017.66 : 206,002.58 = 118,960.70 : x
  2. Step 2: Convert to fraction form
    138,017.66/206,002.58 = 118,960.70/x
  3. Step 3: Cross multiply
    138,017.66x = 206,002.58 × 118,960.70
  4. Step 4: Simplify right side
    138,017.66x = 24,506,211,118.61
  5. Step 5: Solve for x
    x = 24,506,211,118.61/138,017.66
  6. Step 6: Final answer
    x = 177,558.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.