Home / 121,521.36-167,699.28-67,803.12

Finding the Fourth Proportional to 121,521.36, 167,699.28 and 67,803.12

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Solution

The fourth proportional to 121,521.36, 167,699.28 and 67,803.12 is: 93,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,521.36 : 167,699.28 = 67,803.12 : x
  2. Step 2: Convert to fraction form
    121,521.36/167,699.28 = 67,803.12/x
  3. Step 3: Cross multiply
    121,521.36x = 167,699.28 × 67,803.12
  4. Step 4: Simplify right side
    121,521.36x = 11,370,534,405.75
  5. Step 5: Solve for x
    x = 11,370,534,405.75/121,521.36
  6. Step 6: Final answer
    x = 93,568.20

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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.