Home / 124,301.40-186,479.10-45,415.50

Finding the Fourth Proportional to 124,301.40, 186,479.10 and 45,415.50

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Solution

The fourth proportional to 124,301.40, 186,479.10 and 45,415.50 is: 68,133.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,301.40 : 186,479.10 = 45,415.50 : x
  2. Step 2: Convert to fraction form
    124,301.40/186,479.10 = 45,415.50/x
  3. Step 3: Cross multiply
    124,301.40x = 186,479.10 × 45,415.50
  4. Step 4: Simplify right side
    124,301.40x = 8,469,041,566.05
  5. Step 5: Solve for x
    x = 8,469,041,566.05/124,301.40
  6. Step 6: Final answer
    x = 68,133.11

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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.