Home / 144,617.40-216,891.12-55,814.28

Finding the Fourth Proportional to 144,617.40, 216,891.12 and 55,814.28

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Solution

The fourth proportional to 144,617.40, 216,891.12 and 55,814.28 is: 83,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,617.40 : 216,891.12 = 55,814.28 : x
  2. Step 2: Convert to fraction form
    144,617.40/216,891.12 = 55,814.28/x
  3. Step 3: Cross multiply
    144,617.40x = 216,891.12 × 55,814.28
  4. Step 4: Simplify right side
    144,617.40x = 12,105,621,701.19
  5. Step 5: Solve for x
    x = 12,105,621,701.19/144,617.40
  6. Step 6: Final answer
    x = 83,707.92

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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.