Home / 112,400.05-155,110.25-61,411.68

Finding the Fourth Proportional to 112,400.05, 155,110.25 and 61,411.68

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Solution

The fourth proportional to 112,400.05, 155,110.25 and 61,411.68 is: 84,747.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,400.05 : 155,110.25 = 61,411.68 : x
  2. Step 2: Convert to fraction form
    112,400.05/155,110.25 = 61,411.68/x
  3. Step 3: Cross multiply
    112,400.05x = 155,110.25 × 61,411.68
  4. Step 4: Simplify right side
    112,400.05x = 9,525,580,730.66
  5. Step 5: Solve for x
    x = 9,525,580,730.66/112,400.05
  6. Step 6: Final answer
    x = 84,747.13

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1.5x scale

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.