Home / 112,948.98-155,870.78-61,961.81

Finding the Fourth Proportional to 112,948.98, 155,870.78 and 61,961.81

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Solution

The fourth proportional to 112,948.98, 155,870.78 and 61,961.81 is: 85,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,948.98 : 155,870.78 = 61,961.81 : x
  2. Step 2: Convert to fraction form
    112,948.98/155,870.78 = 61,961.81/x
  3. Step 3: Cross multiply
    112,948.98x = 155,870.78 × 61,961.81
  4. Step 4: Simplify right side
    112,948.98x = 9,658,034,565.75
  5. Step 5: Solve for x
    x = 9,658,034,565.75/112,948.98
  6. Step 6: Final answer
    x = 85,507.94

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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.