Home / 112,851.63-155,734.11-61,867.17

Finding the Fourth Proportional to 112,851.63, 155,734.11 and 61,867.17

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Solution

The fourth proportional to 112,851.63, 155,734.11 and 61,867.17 is: 85,376.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,851.63 : 155,734.11 = 61,867.17 : x
  2. Step 2: Convert to fraction form
    112,851.63/155,734.11 = 61,867.17/x
  3. Step 3: Cross multiply
    112,851.63x = 155,734.11 × 61,867.17
  4. Step 4: Simplify right side
    112,851.63x = 9,634,828,658.17
  5. Step 5: Solve for x
    x = 9,634,828,658.17/112,851.63
  6. Step 6: Final answer
    x = 85,376.07

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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.