Home / 112,948.40-155,870.00-61,961.22

Finding the Fourth Proportional to 112,948.40, 155,870.00 and 61,961.22

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Solution

The fourth proportional to 112,948.40, 155,870.00 and 61,961.22 is: 85,507.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,948.40 : 155,870.00 = 61,961.22 : x
  2. Step 2: Convert to fraction form
    112,948.40/155,870.00 = 61,961.22/x
  3. Step 3: Cross multiply
    112,948.40x = 155,870.00 × 61,961.22
  4. Step 4: Simplify right side
    112,948.40x = 9,657,895,051.59
  5. Step 5: Solve for x
    x = 9,657,895,051.59/112,948.40
  6. Step 6: Final answer
    x = 85,507.15

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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.