Home / 158,711.60-219,009.16-90,725.04

Finding the Fourth Proportional to 158,711.60, 219,009.16 and 90,725.04

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Solution

The fourth proportional to 158,711.60, 219,009.16 and 90,725.04 is: 125,193.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,711.60 : 219,009.16 = 90,725.04 : x
  2. Step 2: Convert to fraction form
    158,711.60/219,009.16 = 90,725.04/x
  3. Step 3: Cross multiply
    158,711.60x = 219,009.16 × 90,725.04
  4. Step 4: Simplify right side
    158,711.60x = 19,869,614,801.37
  5. Step 5: Solve for x
    x = 19,869,614,801.37/158,711.60
  6. Step 6: Final answer
    x = 125,193.21

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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.