Home / 112,363.74-155,124.18-76,606.29

Finding the Fourth Proportional to 112,363.74, 155,124.18 and 76,606.29

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Solution

The fourth proportional to 112,363.74, 155,124.18 and 76,606.29 is: 105,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,363.74 : 155,124.18 = 76,606.29 : x
  2. Step 2: Convert to fraction form
    112,363.74/155,124.18 = 76,606.29/x
  3. Step 3: Cross multiply
    112,363.74x = 155,124.18 × 76,606.29
  4. Step 4: Simplify right side
    112,363.74x = 11,883,487,919.09
  5. Step 5: Solve for x
    x = 11,883,487,919.09/112,363.74
  6. Step 6: Final answer
    x = 105,759.10

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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.