Home / 115,440.30-159,280.56-70,117.02

Finding the Fourth Proportional to 115,440.30, 159,280.56 and 70,117.02

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Solution

The fourth proportional to 115,440.30, 159,280.56 and 70,117.02 is: 96,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440.30 : 159,280.56 = 70,117.02 : x
  2. Step 2: Convert to fraction form
    115,440.30/159,280.56 = 70,117.02/x
  3. Step 3: Cross multiply
    115,440.30x = 159,280.56 × 70,117.02
  4. Step 4: Simplify right side
    115,440.30x = 11,168,278,211.13
  5. Step 5: Solve for x
    x = 11,168,278,211.13/115,440.30
  6. Step 6: Final answer
    x = 96,745.06

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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.