Home / 112,711.68-155,542.32-61,029.36

Finding the Fourth Proportional to 112,711.68, 155,542.32 and 61,029.36

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Solution

The fourth proportional to 112,711.68, 155,542.32 and 61,029.36 is: 84,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,711.68 : 155,542.32 = 61,029.36 : x
  2. Step 2: Convert to fraction form
    112,711.68/155,542.32 = 61,029.36/x
  3. Step 3: Cross multiply
    112,711.68x = 155,542.32 × 61,029.36
  4. Step 4: Simplify right side
    112,711.68x = 9,492,648,242.52
  5. Step 5: Solve for x
    x = 9,492,648,242.52/112,711.68
  6. Step 6: Final answer
    x = 84,220.63

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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.