Home / 154,505.80-231,758.70-70,306.30

Finding the Fourth Proportional to 154,505.80, 231,758.70 and 70,306.30

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Solution

The fourth proportional to 154,505.80, 231,758.70 and 70,306.30 is: 105,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,505.80 : 231,758.70 = 70,306.30 : x
  2. Step 2: Convert to fraction form
    154,505.80/231,758.70 = 70,306.30/x
  3. Step 3: Cross multiply
    154,505.80x = 231,758.70 × 70,306.30
  4. Step 4: Simplify right side
    154,505.80x = 16,294,096,689.81
  5. Step 5: Solve for x
    x = 16,294,096,689.81/154,505.80
  6. Step 6: Final answer
    x = 105,459.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.