Home / 112,909.34-155,770.44-65,153.46

Finding the Fourth Proportional to 112,909.34, 155,770.44 and 65,153.46

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Solution

The fourth proportional to 112,909.34, 155,770.44 and 65,153.46 is: 89,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,909.34 : 155,770.44 = 65,153.46 : x
  2. Step 2: Convert to fraction form
    112,909.34/155,770.44 = 65,153.46/x
  3. Step 3: Cross multiply
    112,909.34x = 155,770.44 × 65,153.46
  4. Step 4: Simplify right side
    112,909.34x = 10,148,983,838.02
  5. Step 5: Solve for x
    x = 10,148,983,838.02/112,909.34
  6. Step 6: Final answer
    x = 89,886.13

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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.