Home / 160,438.93-240,428.76-90,170.62

Finding the Fourth Proportional to 160,438.93, 240,428.76 and 90,170.62

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Solution

The fourth proportional to 160,438.93, 240,428.76 and 90,170.62 is: 135,126.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,438.93 : 240,428.76 = 90,170.62 : x
  2. Step 2: Convert to fraction form
    160,438.93/240,428.76 = 90,170.62/x
  3. Step 3: Cross multiply
    160,438.93x = 240,428.76 × 90,170.62
  4. Step 4: Simplify right side
    160,438.93x = 21,679,609,415.82
  5. Step 5: Solve for x
    x = 21,679,609,415.82/160,438.93
  6. Step 6: Final answer
    x = 135,126.87

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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.