Home / 115,005.40-172,637.70-88,826.20

Finding the Fourth Proportional to 115,005.40, 172,637.70 and 88,826.20

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Solution

The fourth proportional to 115,005.40, 172,637.70 and 88,826.20 is: 133,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,005.40 : 172,637.70 = 88,826.20 : x
  2. Step 2: Convert to fraction form
    115,005.40/172,637.70 = 88,826.20/x
  3. Step 3: Cross multiply
    115,005.40x = 172,637.70 × 88,826.20
  4. Step 4: Simplify right side
    115,005.40x = 15,334,750,867.74
  5. Step 5: Solve for x
    x = 15,334,750,867.74/115,005.40
  6. Step 6: Final answer
    x = 133,339.40

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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.