Home / 112,730.11-155,569.90-61,744.98

Finding the Fourth Proportional to 112,730.11, 155,569.90 and 61,744.98

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Solution

The fourth proportional to 112,730.11, 155,569.90 and 61,744.98 is: 85,209.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,730.11 : 155,569.90 = 61,744.98 : x
  2. Step 2: Convert to fraction form
    112,730.11/155,569.90 = 61,744.98/x
  3. Step 3: Cross multiply
    112,730.11x = 155,569.90 × 61,744.98
  4. Step 4: Simplify right side
    112,730.11x = 9,605,660,908.90
  5. Step 5: Solve for x
    x = 9,605,660,908.90/112,730.11
  6. Step 6: Final answer
    x = 85,209.36

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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.