Home / 112,756.74-155,533.89-72,522.98

Finding the Fourth Proportional to 112,756.74, 155,533.89 and 72,522.98

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Solution

The fourth proportional to 112,756.74, 155,533.89 and 72,522.98 is: 100,036.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,756.74 : 155,533.89 = 72,522.98 : x
  2. Step 2: Convert to fraction form
    112,756.74/155,533.89 = 72,522.98/x
  3. Step 3: Cross multiply
    112,756.74x = 155,533.89 × 72,522.98
  4. Step 4: Simplify right side
    112,756.74x = 11,279,781,193.79
  5. Step 5: Solve for x
    x = 11,279,781,193.79/112,756.74
  6. Step 6: Final answer
    x = 100,036.43

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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.