Home / 126,244.95-174,281.19-78,513.69

Finding the Fourth Proportional to 126,244.95, 174,281.19 and 78,513.69

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Solution

The fourth proportional to 126,244.95, 174,281.19 and 78,513.69 is: 108,388.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,244.95 : 174,281.19 = 78,513.69 : x
  2. Step 2: Convert to fraction form
    126,244.95/174,281.19 = 78,513.69/x
  3. Step 3: Cross multiply
    126,244.95x = 174,281.19 × 78,513.69
  4. Step 4: Simplify right side
    126,244.95x = 13,683,459,324.49
  5. Step 5: Solve for x
    x = 13,683,459,324.49/126,244.95
  6. Step 6: Final answer
    x = 108,388.17

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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.