Home / 124,801.71-172,206.45-71,087.79

Finding the Fourth Proportional to 124,801.71, 172,206.45 and 71,087.79

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Solution

The fourth proportional to 124,801.71, 172,206.45 and 71,087.79 is: 98,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,801.71 : 172,206.45 = 71,087.79 : x
  2. Step 2: Convert to fraction form
    124,801.71/172,206.45 = 71,087.79/x
  3. Step 3: Cross multiply
    124,801.71x = 172,206.45 × 71,087.79
  4. Step 4: Simplify right side
    124,801.71x = 12,241,775,954.25
  5. Step 5: Solve for x
    x = 12,241,775,954.25/124,801.71
  6. Step 6: Final answer
    x = 98,089.81

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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.