Home / 122,570.84-169,117.92-71,554.50

Finding the Fourth Proportional to 122,570.84, 169,117.92 and 71,554.50

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Solution

The fourth proportional to 122,570.84, 169,117.92 and 71,554.50 is: 98,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,570.84 : 169,117.92 = 71,554.50 : x
  2. Step 2: Convert to fraction form
    122,570.84/169,117.92 = 71,554.50/x
  3. Step 3: Cross multiply
    122,570.84x = 169,117.92 × 71,554.50
  4. Step 4: Simplify right side
    122,570.84x = 12,101,148,206.64
  5. Step 5: Solve for x
    x = 12,101,148,206.64/122,570.84
  6. Step 6: Final answer
    x = 98,727.79

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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.