Home / 122,257.50-168,661.89-86,478.18

Finding the Fourth Proportional to 122,257.50, 168,661.89 and 86,478.18

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Solution

The fourth proportional to 122,257.50, 168,661.89 and 86,478.18 is: 119,302.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,257.50 : 168,661.89 = 86,478.18 : x
  2. Step 2: Convert to fraction form
    122,257.50/168,661.89 = 86,478.18/x
  3. Step 3: Cross multiply
    122,257.50x = 168,661.89 × 86,478.18
  4. Step 4: Simplify right side
    122,257.50x = 14,585,573,282.56
  5. Step 5: Solve for x
    x = 14,585,573,282.56/122,257.50
  6. Step 6: Final answer
    x = 119,302.07

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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.