Home / 90,719.16-136,088.98-38,118.84

Finding the Fourth Proportional to 90,719.16, 136,088.98 and 38,118.84

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Solution

The fourth proportional to 90,719.16, 136,088.98 and 38,118.84 is: 57,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,719.16 : 136,088.98 = 38,118.84 : x
  2. Step 2: Convert to fraction form
    90,719.16/136,088.98 = 38,118.84/x
  3. Step 3: Cross multiply
    90,719.16x = 136,088.98 × 38,118.84
  4. Step 4: Simplify right side
    90,719.16x = 5,187,554,054.38
  5. Step 5: Solve for x
    x = 5,187,554,054.38/90,719.16
  6. Step 6: Final answer
    x = 57,182.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.