Home / 74,230.20-111,345.30-66,065.40

Finding the Fourth Proportional to 74,230.20, 111,345.30 and 66,065.40

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Solution

The fourth proportional to 74,230.20, 111,345.30 and 66,065.40 is: 99,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,230.20 : 111,345.30 = 66,065.40 : x
  2. Step 2: Convert to fraction form
    74,230.20/111,345.30 = 66,065.40/x
  3. Step 3: Cross multiply
    74,230.20x = 111,345.30 × 66,065.40
  4. Step 4: Simplify right side
    74,230.20x = 7,356,071,782.62
  5. Step 5: Solve for x
    x = 7,356,071,782.62/74,230.20
  6. Step 6: Final answer
    x = 99,098.10

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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.