Home / 112,555.30-155,319.96-61,557.88

Finding the Fourth Proportional to 112,555.30, 155,319.96 and 61,557.88

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Solution

The fourth proportional to 112,555.30, 155,319.96 and 61,557.88 is: 84,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,555.30 : 155,319.96 = 61,557.88 : x
  2. Step 2: Convert to fraction form
    112,555.30/155,319.96 = 61,557.88/x
  3. Step 3: Cross multiply
    112,555.30x = 155,319.96 × 61,557.88
  4. Step 4: Simplify right side
    112,555.30x = 9,561,167,459.28
  5. Step 5: Solve for x
    x = 9,561,167,459.28/112,555.30
  6. Step 6: Final answer
    x = 84,946.40

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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.