Home / 231,472.15-347,235.96-81,681.50

Finding the Fourth Proportional to 231,472.15, 347,235.96 and 81,681.50

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Solution

The fourth proportional to 231,472.15, 347,235.96 and 81,681.50 is: 122,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,472.15 : 347,235.96 = 81,681.50 : x
  2. Step 2: Convert to fraction form
    231,472.15/347,235.96 = 81,681.50/x
  3. Step 3: Cross multiply
    231,472.15x = 347,235.96 × 81,681.50
  4. Step 4: Simplify right side
    231,472.15x = 28,362,754,066.74
  5. Step 5: Solve for x
    x = 28,362,754,066.74/231,472.15
  6. Step 6: Final answer
    x = 122,532.04

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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.