Home / 126,856.89-190,307.21-42,625.13

Finding the Fourth Proportional to 126,856.89, 190,307.21 and 42,625.13

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Solution

The fourth proportional to 126,856.89, 190,307.21 and 42,625.13 is: 63,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,856.89 : 190,307.21 = 42,625.13 : x
  2. Step 2: Convert to fraction form
    126,856.89/190,307.21 = 42,625.13/x
  3. Step 3: Cross multiply
    126,856.89x = 190,307.21 × 42,625.13
  4. Step 4: Simplify right side
    126,856.89x = 8,111,868,401.53
  5. Step 5: Solve for x
    x = 8,111,868,401.53/126,856.89
  6. Step 6: Final answer
    x = 63,945.04

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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.