Home / 150,143.34-207,190.95-86,490.30

Finding the Fourth Proportional to 150,143.34, 207,190.95 and 86,490.30

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Solution

The fourth proportional to 150,143.34, 207,190.95 and 86,490.30 is: 119,352.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,143.34 : 207,190.95 = 86,490.30 : x
  2. Step 2: Convert to fraction form
    150,143.34/207,190.95 = 86,490.30/x
  3. Step 3: Cross multiply
    150,143.34x = 207,190.95 × 86,490.30
  4. Step 4: Simplify right side
    150,143.34x = 17,920,007,422.79
  5. Step 5: Solve for x
    x = 17,920,007,422.79/150,143.34
  6. Step 6: Final answer
    x = 119,352.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.