Home / 145,279.04-217,626.96-105,919.52

Finding the Fourth Proportional to 145,279.04, 217,626.96 and 105,919.52

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Solution

The fourth proportional to 145,279.04, 217,626.96 and 105,919.52 is: 158,666.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,279.04 : 217,626.96 = 105,919.52 : x
  2. Step 2: Convert to fraction form
    145,279.04/217,626.96 = 105,919.52/x
  3. Step 3: Cross multiply
    145,279.04x = 217,626.96 × 105,919.52
  4. Step 4: Simplify right side
    145,279.04x = 23,050,943,142.26
  5. Step 5: Solve for x
    x = 23,050,943,142.26/145,279.04
  6. Step 6: Final answer
    x = 158,666.68

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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.