Home / 160,144.10-240,014.55-81,280.10

Finding the Fourth Proportional to 160,144.10, 240,014.55 and 81,280.10

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Solution

The fourth proportional to 160,144.10, 240,014.55 and 81,280.10 is: 121,817.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,144.10 : 240,014.55 = 81,280.10 : x
  2. Step 2: Convert to fraction form
    160,144.10/240,014.55 = 81,280.10/x
  3. Step 3: Cross multiply
    160,144.10x = 240,014.55 × 81,280.10
  4. Step 4: Simplify right side
    160,144.10x = 19,508,406,625.46
  5. Step 5: Solve for x
    x = 19,508,406,625.46/160,144.10
  6. Step 6: Final answer
    x = 121,817.83

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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.