Home / 113,130.20-169,695.30-89,629.40

Finding the Fourth Proportional to 113,130.20, 169,695.30 and 89,629.40

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Solution

The fourth proportional to 113,130.20, 169,695.30 and 89,629.40 is: 134,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,130.20 : 169,695.30 = 89,629.40 : x
  2. Step 2: Convert to fraction form
    113,130.20/169,695.30 = 89,629.40/x
  3. Step 3: Cross multiply
    113,130.20x = 169,695.30 × 89,629.40
  4. Step 4: Simplify right side
    113,130.20x = 15,209,687,921.82
  5. Step 5: Solve for x
    x = 15,209,687,921.82/113,130.20
  6. Step 6: Final answer
    x = 134,444.10

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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.