Home / 243,990.12-336,706.32-136,560.15

Finding the Fourth Proportional to 243,990.12, 336,706.32 and 136,560.15

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Solution

The fourth proportional to 243,990.12, 336,706.32 and 136,560.15 is: 188,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,990.12 : 336,706.32 = 136,560.15 : x
  2. Step 2: Convert to fraction form
    243,990.12/336,706.32 = 136,560.15/x
  3. Step 3: Cross multiply
    243,990.12x = 336,706.32 × 136,560.15
  4. Step 4: Simplify right side
    243,990.12x = 45,980,666,256.08
  5. Step 5: Solve for x
    x = 45,980,666,256.08/243,990.12
  6. Step 6: Final answer
    x = 188,452.98

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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.