Home / 154,001.04-212,524.92-90,384.72

Finding the Fourth Proportional to 154,001.04, 212,524.92 and 90,384.72

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Solution

The fourth proportional to 154,001.04, 212,524.92 and 90,384.72 is: 124,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,001.04 : 212,524.92 = 90,384.72 : x
  2. Step 2: Convert to fraction form
    154,001.04/212,524.92 = 90,384.72/x
  3. Step 3: Cross multiply
    154,001.04x = 212,524.92 × 90,384.72
  4. Step 4: Simplify right side
    154,001.04x = 19,209,005,387.22
  5. Step 5: Solve for x
    x = 19,209,005,387.22/154,001.04
  6. Step 6: Final answer
    x = 124,732.96

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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.