Home / 121,623.14-167,838.32-67,909.06

Finding the Fourth Proportional to 121,623.14, 167,838.32 and 67,909.06

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Solution

The fourth proportional to 121,623.14, 167,838.32 and 67,909.06 is: 93,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,623.14 : 167,838.32 = 67,909.06 : x
  2. Step 2: Convert to fraction form
    121,623.14/167,838.32 = 67,909.06/x
  3. Step 3: Cross multiply
    121,623.14x = 167,838.32 × 67,909.06
  4. Step 4: Simplify right side
    121,623.14x = 11,397,742,543.18
  5. Step 5: Solve for x
    x = 11,397,742,543.18/121,623.14
  6. Step 6: Final answer
    x = 93,713.60

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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.