Home / 121,642.72-167,867.18-67,927.56

Finding the Fourth Proportional to 121,642.72, 167,867.18 and 67,927.56

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Solution

The fourth proportional to 121,642.72, 167,867.18 and 67,927.56 is: 93,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,642.72 : 167,867.18 = 67,927.56 : x
  2. Step 2: Convert to fraction form
    121,642.72/167,867.18 = 67,927.56/x
  3. Step 3: Cross multiply
    121,642.72x = 167,867.18 × 67,927.56
  4. Step 4: Simplify right side
    121,642.72x = 11,402,807,941.48
  5. Step 5: Solve for x
    x = 11,402,807,941.48/121,642.72
  6. Step 6: Final answer
    x = 93,740.16

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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.