Home / 145,864.71-218,834.01-40,683.66

Finding the Fourth Proportional to 145,864.71, 218,834.01 and 40,683.66

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Solution

The fourth proportional to 145,864.71, 218,834.01 and 40,683.66 is: 61,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,864.71 : 218,834.01 = 40,683.66 : x
  2. Step 2: Convert to fraction form
    145,864.71/218,834.01 = 40,683.66/x
  3. Step 3: Cross multiply
    145,864.71x = 218,834.01 × 40,683.66
  4. Step 4: Simplify right side
    145,864.71x = 8,902,968,459.28
  5. Step 5: Solve for x
    x = 8,902,968,459.28/145,864.71
  6. Step 6: Final answer
    x = 61,035.79

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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.