Home / 84,302.15-126,081.42-75,007.40

Finding the Fourth Proportional to 84,302.15, 126,081.42 and 75,007.40

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Solution

The fourth proportional to 84,302.15, 126,081.42 and 75,007.40 is: 112,180.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,302.15 : 126,081.42 = 75,007.40 : x
  2. Step 2: Convert to fraction form
    84,302.15/126,081.42 = 75,007.40/x
  3. Step 3: Cross multiply
    84,302.15x = 126,081.42 × 75,007.40
  4. Step 4: Simplify right side
    84,302.15x = 9,457,039,502.51
  5. Step 5: Solve for x
    x = 9,457,039,502.51/84,302.15
  6. Step 6: Final answer
    x = 112,180.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.