Home / 145,412.16-218,077.92-40,223.04

Finding the Fourth Proportional to 145,412.16, 218,077.92 and 40,223.04

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Solution

The fourth proportional to 145,412.16, 218,077.92 and 40,223.04 is: 60,323.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,412.16 : 218,077.92 = 40,223.04 : x
  2. Step 2: Convert to fraction form
    145,412.16/218,077.92 = 40,223.04/x
  3. Step 3: Cross multiply
    145,412.16x = 218,077.92 × 40,223.04
  4. Step 4: Simplify right side
    145,412.16x = 8,771,756,899.28
  5. Step 5: Solve for x
    x = 8,771,756,899.28/145,412.16
  6. Step 6: Final answer
    x = 60,323.41

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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.