Home / 145,368.18-218,026.62-66,463.56

Finding the Fourth Proportional to 145,368.18, 218,026.62 and 66,463.56

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Solution

The fourth proportional to 145,368.18, 218,026.62 and 66,463.56 is: 99,683.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,368.18 : 218,026.62 = 66,463.56 : x
  2. Step 2: Convert to fraction form
    145,368.18/218,026.62 = 66,463.56/x
  3. Step 3: Cross multiply
    145,368.18x = 218,026.62 × 66,463.56
  4. Step 4: Simplify right side
    145,368.18x = 14,490,825,339.97
  5. Step 5: Solve for x
    x = 14,490,825,339.97/145,368.18
  6. Step 6: Final answer
    x = 99,683.61

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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.