Home / 112,909.12-155,810.88-62,611.84

Finding the Fourth Proportional to 112,909.12, 155,810.88 and 62,611.84

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Solution

The fourth proportional to 112,909.12, 155,810.88 and 62,611.84 is: 86,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,909.12 : 155,810.88 = 62,611.84 : x
  2. Step 2: Convert to fraction form
    112,909.12/155,810.88 = 62,611.84/x
  3. Step 3: Cross multiply
    112,909.12x = 155,810.88 × 62,611.84
  4. Step 4: Simplify right side
    112,909.12x = 9,755,605,888.82
  5. Step 5: Solve for x
    x = 9,755,605,888.82/112,909.12
  6. Step 6: Final answer
    x = 86,402.28

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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.