Home / 121,933.65-168,261.55-67,482.81

Finding the Fourth Proportional to 121,933.65, 168,261.55 and 67,482.81

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Solution

The fourth proportional to 121,933.65, 168,261.55 and 67,482.81 is: 93,122.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,933.65 : 168,261.55 = 67,482.81 : x
  2. Step 2: Convert to fraction form
    121,933.65/168,261.55 = 67,482.81/x
  3. Step 3: Cross multiply
    121,933.65x = 168,261.55 × 67,482.81
  4. Step 4: Simplify right side
    121,933.65x = 11,354,762,208.96
  5. Step 5: Solve for x
    x = 11,354,762,208.96/121,933.65
  6. Step 6: Final answer
    x = 93,122.47

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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.