Home / 154,605.16-213,360.42-90,070.12

Finding the Fourth Proportional to 154,605.16, 213,360.42 and 90,070.12

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Solution

The fourth proportional to 154,605.16, 213,360.42 and 90,070.12 is: 124,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,605.16 : 213,360.42 = 90,070.12 : x
  2. Step 2: Convert to fraction form
    154,605.16/213,360.42 = 90,070.12/x
  3. Step 3: Cross multiply
    154,605.16x = 213,360.42 × 90,070.12
  4. Step 4: Simplify right side
    154,605.16x = 19,217,398,632.65
  5. Step 5: Solve for x
    x = 19,217,398,632.65/154,605.16
  6. Step 6: Final answer
    x = 124,299.85

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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.