Home / 131,838.76-181,970.04-75,282.94

Finding the Fourth Proportional to 131,838.76, 181,970.04 and 75,282.94

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Solution

The fourth proportional to 131,838.76, 181,970.04 and 75,282.94 is: 103,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,838.76 : 181,970.04 = 75,282.94 : x
  2. Step 2: Convert to fraction form
    131,838.76/181,970.04 = 75,282.94/x
  3. Step 3: Cross multiply
    131,838.76x = 181,970.04 × 75,282.94
  4. Step 4: Simplify right side
    131,838.76x = 13,699,239,603.12
  5. Step 5: Solve for x
    x = 13,699,239,603.12/131,838.76
  6. Step 6: Final answer
    x = 103,909.04

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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.