Home / 103,957.24-143,463.60-63,693.20

Finding the Fourth Proportional to 103,957.24, 143,463.60 and 63,693.20

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Solution

The fourth proportional to 103,957.24, 143,463.60 and 63,693.20 is: 87,898.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,957.24 : 143,463.60 = 63,693.20 : x
  2. Step 2: Convert to fraction form
    103,957.24/143,463.60 = 63,693.20/x
  3. Step 3: Cross multiply
    103,957.24x = 143,463.60 × 63,693.20
  4. Step 4: Simplify right side
    103,957.24x = 9,137,655,767.52
  5. Step 5: Solve for x
    x = 9,137,655,767.52/103,957.24
  6. Step 6: Final answer
    x = 87,898.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.