Home / 121,167.07-167,206.81-67,450.90

Finding the Fourth Proportional to 121,167.07, 167,206.81 and 67,450.90

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Solution

The fourth proportional to 121,167.07, 167,206.81 and 67,450.90 is: 93,080.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,167.07 : 167,206.81 = 67,450.90 : x
  2. Step 2: Convert to fraction form
    121,167.07/167,206.81 = 67,450.90/x
  3. Step 3: Cross multiply
    121,167.07x = 167,206.81 × 67,450.90
  4. Step 4: Simplify right side
    121,167.07x = 11,278,249,820.63
  5. Step 5: Solve for x
    x = 11,278,249,820.63/121,167.07
  6. Step 6: Final answer
    x = 93,080.16

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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.