Home / 145,282.29-217,454.68-75,065.01

Finding the Fourth Proportional to 145,282.29, 217,454.68 and 75,065.01

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Solution

The fourth proportional to 145,282.29, 217,454.68 and 75,065.01 is: 112,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,282.29 : 217,454.68 = 75,065.01 : x
  2. Step 2: Convert to fraction form
    145,282.29/217,454.68 = 75,065.01/x
  3. Step 3: Cross multiply
    145,282.29x = 217,454.68 × 75,065.01
  4. Step 4: Simplify right side
    145,282.29x = 16,323,237,728.75
  5. Step 5: Solve for x
    x = 16,323,237,728.75/145,282.29
  6. Step 6: Final answer
    x = 112,355.32

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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.