Home / 103,123.45-154,378.86-56,234.17

Finding the Fourth Proportional to 103,123.45, 154,378.86 and 56,234.17

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Solution

The fourth proportional to 103,123.45, 154,378.86 and 56,234.17 is: 84,184.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,123.45 : 154,378.86 = 56,234.17 : x
  2. Step 2: Convert to fraction form
    103,123.45/154,378.86 = 56,234.17/x
  3. Step 3: Cross multiply
    103,123.45x = 154,378.86 × 56,234.17
  4. Step 4: Simplify right side
    103,123.45x = 8,681,367,057.65
  5. Step 5: Solve for x
    x = 8,681,367,057.65/103,123.45
  6. Step 6: Final answer
    x = 84,184.22

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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.