Home / 143,821.71-215,730.74-43,985.16

Finding the Fourth Proportional to 143,821.71, 215,730.74 and 43,985.16

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Solution

The fourth proportional to 143,821.71, 215,730.74 and 43,985.16 is: 65,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,821.71 : 215,730.74 = 43,985.16 : x
  2. Step 2: Convert to fraction form
    143,821.71/215,730.74 = 43,985.16/x
  3. Step 3: Cross multiply
    143,821.71x = 215,730.74 × 43,985.16
  4. Step 4: Simplify right side
    143,821.71x = 9,488,951,225.78
  5. Step 5: Solve for x
    x = 9,488,951,225.78/143,821.71
  6. Step 6: Final answer
    x = 65,977.18

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1.5x scale

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.