Home / 115,378.28-159,224.10-67,666.04

Finding the Fourth Proportional to 115,378.28, 159,224.10 and 67,666.04

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Solution

The fourth proportional to 115,378.28, 159,224.10 and 67,666.04 is: 93,380.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,378.28 : 159,224.10 = 67,666.04 : x
  2. Step 2: Convert to fraction form
    115,378.28/159,224.10 = 67,666.04/x
  3. Step 3: Cross multiply
    115,378.28x = 159,224.10 × 67,666.04
  4. Step 4: Simplify right side
    115,378.28x = 10,774,064,319.56
  5. Step 5: Solve for x
    x = 10,774,064,319.56/115,378.28
  6. Step 6: Final answer
    x = 93,380.35

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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.