Home / 121,430.48-167,574.42-66,981.33

Finding the Fourth Proportional to 121,430.48, 167,574.42 and 66,981.33

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Solution

The fourth proportional to 121,430.48, 167,574.42 and 66,981.33 is: 92,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,430.48 : 167,574.42 = 66,981.33 : x
  2. Step 2: Convert to fraction form
    121,430.48/167,574.42 = 66,981.33/x
  3. Step 3: Cross multiply
    121,430.48x = 167,574.42 × 66,981.33
  4. Step 4: Simplify right side
    121,430.48x = 11,224,357,525.58
  5. Step 5: Solve for x
    x = 11,224,357,525.58/121,430.48
  6. Step 6: Final answer
    x = 92,434.44

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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.