Home / 112,929.48-155,841.60-61,941.15

Finding the Fourth Proportional to 112,929.48, 155,841.60 and 61,941.15

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Solution

The fourth proportional to 112,929.48, 155,841.60 and 61,941.15 is: 85,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,929.48 : 155,841.60 = 61,941.15 : x
  2. Step 2: Convert to fraction form
    112,929.48/155,841.60 = 61,941.15/x
  3. Step 3: Cross multiply
    112,929.48x = 155,841.60 × 61,941.15
  4. Step 4: Simplify right side
    112,929.48x = 9,653,007,921.84
  5. Step 5: Solve for x
    x = 9,653,007,921.84/112,929.48
  6. Step 6: Final answer
    x = 85,478.19

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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.