Home / 112,829.81-155,707.06-61,841.53

Finding the Fourth Proportional to 112,829.81, 155,707.06 and 61,841.53

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Solution

The fourth proportional to 112,829.81, 155,707.06 and 61,841.53 is: 85,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,829.81 : 155,707.06 = 61,841.53 : x
  2. Step 2: Convert to fraction form
    112,829.81/155,707.06 = 61,841.53/x
  3. Step 3: Cross multiply
    112,829.81x = 155,707.06 × 61,841.53
  4. Step 4: Simplify right side
    112,829.81x = 9,629,162,043.67
  5. Step 5: Solve for x
    x = 9,629,162,043.67/112,829.81
  6. Step 6: Final answer
    x = 85,342.36

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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.