Home / 115,718.40-173,707.20-89,539.20

Finding the Fourth Proportional to 115,718.40, 173,707.20 and 89,539.20

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Solution

The fourth proportional to 115,718.40, 173,707.20 and 89,539.20 is: 134,409.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,718.40 : 173,707.20 = 89,539.20 : x
  2. Step 2: Convert to fraction form
    115,718.40/173,707.20 = 89,539.20/x
  3. Step 3: Cross multiply
    115,718.40x = 173,707.20 × 89,539.20
  4. Step 4: Simplify right side
    115,718.40x = 15,553,603,722.24
  5. Step 5: Solve for x
    x = 15,553,603,722.24/115,718.40
  6. Step 6: Final answer
    x = 134,409.08

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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.