Home / 145,616.90-218,425.19-45,785.81

Finding the Fourth Proportional to 145,616.90, 218,425.19 and 45,785.81

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Solution

The fourth proportional to 145,616.90, 218,425.19 and 45,785.81 is: 68,678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,616.90 : 218,425.19 = 45,785.81 : x
  2. Step 2: Convert to fraction form
    145,616.90/218,425.19 = 45,785.81/x
  3. Step 3: Cross multiply
    145,616.90x = 218,425.19 × 45,785.81
  4. Step 4: Simplify right side
    145,616.90x = 10,000,772,927.50
  5. Step 5: Solve for x
    x = 10,000,772,927.50/145,616.90
  6. Step 6: Final answer
    x = 68,678.66

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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.