Home / 121,756.02-168,039.18-68,052.21

Finding the Fourth Proportional to 121,756.02, 168,039.18 and 68,052.21

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Solution

The fourth proportional to 121,756.02, 168,039.18 and 68,052.21 is: 93,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,756.02 : 168,039.18 = 68,052.21 : x
  2. Step 2: Convert to fraction form
    121,756.02/168,039.18 = 68,052.21/x
  3. Step 3: Cross multiply
    121,756.02x = 168,039.18 × 68,052.21
  4. Step 4: Simplify right side
    121,756.02x = 11,435,437,565.59
  5. Step 5: Solve for x
    x = 11,435,437,565.59/121,756.02
  6. Step 6: Final answer
    x = 93,920.92

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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.