Home / 154,510.74-213,230.07-90,854.46

Finding the Fourth Proportional to 154,510.74, 213,230.07 and 90,854.46

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Solution

The fourth proportional to 154,510.74, 213,230.07 and 90,854.46 is: 125,382.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,510.74 : 213,230.07 = 90,854.46 : x
  2. Step 2: Convert to fraction form
    154,510.74/213,230.07 = 90,854.46/x
  3. Step 3: Cross multiply
    154,510.74x = 213,230.07 × 90,854.46
  4. Step 4: Simplify right side
    154,510.74x = 19,372,902,865.61
  5. Step 5: Solve for x
    x = 19,372,902,865.61/154,510.74
  6. Step 6: Final answer
    x = 125,382.24

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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.