Home / 149,040.76-205,572.12-101,211.04

Finding the Fourth Proportional to 149,040.76, 205,572.12 and 101,211.04

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Solution

The fourth proportional to 149,040.76, 205,572.12 and 101,211.04 is: 139,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,040.76 : 205,572.12 = 101,211.04 : x
  2. Step 2: Convert to fraction form
    149,040.76/205,572.12 = 101,211.04/x
  3. Step 3: Cross multiply
    149,040.76x = 205,572.12 × 101,211.04
  4. Step 4: Simplify right side
    149,040.76x = 20,806,168,060.20
  5. Step 5: Solve for x
    x = 20,806,168,060.20/149,040.76
  6. Step 6: Final answer
    x = 139,600.52

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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.