Home / 154,651.93-213,416.17-90,117.13

Finding the Fourth Proportional to 154,651.93, 213,416.17 and 90,117.13

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Solution

The fourth proportional to 154,651.93, 213,416.17 and 90,117.13 is: 124,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,651.93 : 213,416.17 = 90,117.13 : x
  2. Step 2: Convert to fraction form
    154,651.93/213,416.17 = 90,117.13/x
  3. Step 3: Cross multiply
    154,651.93x = 213,416.17 × 90,117.13
  4. Step 4: Simplify right side
    154,651.93x = 19,232,452,735.99
  5. Step 5: Solve for x
    x = 19,232,452,735.99/154,651.93
  6. Step 6: Final answer
    x = 124,359.60

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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.