Home / 115,756.20-159,774.76-68,041.52

Finding the Fourth Proportional to 115,756.20, 159,774.76 and 68,041.52

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Solution

The fourth proportional to 115,756.20, 159,774.76 and 68,041.52 is: 93,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,756.20 : 159,774.76 = 68,041.52 : x
  2. Step 2: Convert to fraction form
    115,756.20/159,774.76 = 68,041.52/x
  3. Step 3: Cross multiply
    115,756.20x = 159,774.76 × 68,041.52
  4. Step 4: Simplify right side
    115,756.20x = 10,871,317,528.04
  5. Step 5: Solve for x
    x = 10,871,317,528.04/115,756.20
  6. Step 6: Final answer
    x = 93,915.64

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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.