Home / 90,226.50-135,339.13-70,521.63

Finding the Fourth Proportional to 90,226.50, 135,339.13 and 70,521.63

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Solution

The fourth proportional to 90,226.50, 135,339.13 and 70,521.63 is: 105,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,226.50 : 135,339.13 = 70,521.63 : x
  2. Step 2: Convert to fraction form
    90,226.50/135,339.13 = 70,521.63/x
  3. Step 3: Cross multiply
    90,226.50x = 135,339.13 × 70,521.63
  4. Step 4: Simplify right side
    90,226.50x = 9,544,336,050.38
  5. Step 5: Solve for x
    x = 9,544,336,050.38/90,226.50
  6. Step 6: Final answer
    x = 105,781.96

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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.