Home / 150,378.12-207,508.03-86,703.62

Finding the Fourth Proportional to 150,378.12, 207,508.03 and 86,703.62

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Solution

The fourth proportional to 150,378.12, 207,508.03 and 86,703.62 is: 119,643.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,378.12 : 207,508.03 = 86,703.62 : x
  2. Step 2: Convert to fraction form
    150,378.12/207,508.03 = 86,703.62/x
  3. Step 3: Cross multiply
    150,378.12x = 207,508.03 × 86,703.62
  4. Step 4: Simplify right side
    150,378.12x = 17,991,696,125.77
  5. Step 5: Solve for x
    x = 17,991,696,125.77/150,378.12
  6. Step 6: Final answer
    x = 119,643.04

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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.