Home / 113,808.20-170,712.30-61,320.20

Finding the Fourth Proportional to 113,808.20, 170,712.30 and 61,320.20

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Solution

The fourth proportional to 113,808.20, 170,712.30 and 61,320.20 is: 91,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,808.20 : 170,712.30 = 61,320.20 : x
  2. Step 2: Convert to fraction form
    113,808.20/170,712.30 = 61,320.20/x
  3. Step 3: Cross multiply
    113,808.20x = 170,712.30 × 61,320.20
  4. Step 4: Simplify right side
    113,808.20x = 10,468,112,378.46
  5. Step 5: Solve for x
    x = 10,468,112,378.46/113,808.20
  6. Step 6: Final answer
    x = 91,980.30

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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.