Home / 145,869.30-218,784.51-40,679.46

Finding the Fourth Proportional to 145,869.30, 218,784.51 and 40,679.46

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Solution

The fourth proportional to 145,869.30, 218,784.51 and 40,679.46 is: 61,013.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,869.30 : 218,784.51 = 40,679.46 : x
  2. Step 2: Convert to fraction form
    145,869.30/218,784.51 = 40,679.46/x
  3. Step 3: Cross multiply
    145,869.30x = 218,784.51 × 40,679.46
  4. Step 4: Simplify right side
    145,869.30x = 8,900,035,723.16
  5. Step 5: Solve for x
    x = 8,900,035,723.16/145,869.30
  6. Step 6: Final answer
    x = 61,013.77

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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.