Home / 121,609.74-167,808.66-70,612.50

Finding the Fourth Proportional to 121,609.74, 167,808.66 and 70,612.50

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Solution

The fourth proportional to 121,609.74, 167,808.66 and 70,612.50 is: 97,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,609.74 : 167,808.66 = 70,612.50 : x
  2. Step 2: Convert to fraction form
    121,609.74/167,808.66 = 70,612.50/x
  3. Step 3: Cross multiply
    121,609.74x = 167,808.66 × 70,612.50
  4. Step 4: Simplify right side
    121,609.74x = 11,849,389,004.25
  5. Step 5: Solve for x
    x = 11,849,389,004.25/121,609.74
  6. Step 6: Final answer
    x = 97,437.83

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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.