Home / 112,690.62-155,515.08-61,703.46

Finding the Fourth Proportional to 112,690.62, 155,515.08 and 61,703.46

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Solution

The fourth proportional to 112,690.62, 155,515.08 and 61,703.46 is: 85,151.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,690.62 : 155,515.08 = 61,703.46 : x
  2. Step 2: Convert to fraction form
    112,690.62/155,515.08 = 61,703.46/x
  3. Step 3: Cross multiply
    112,690.62x = 155,515.08 × 61,703.46
  4. Step 4: Simplify right side
    112,690.62x = 9,595,818,518.18
  5. Step 5: Solve for x
    x = 9,595,818,518.18/112,690.62
  6. Step 6: Final answer
    x = 85,151.88

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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.