Home / 105,632.16-158,341.62-66,216.95

Finding the Fourth Proportional to 105,632.16, 158,341.62 and 66,216.95

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Solution

The fourth proportional to 105,632.16, 158,341.62 and 66,216.95 is: 99,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,632.16 : 158,341.62 = 66,216.95 : x
  2. Step 2: Convert to fraction form
    105,632.16/158,341.62 = 66,216.95/x
  3. Step 3: Cross multiply
    105,632.16x = 158,341.62 × 66,216.95
  4. Step 4: Simplify right side
    105,632.16x = 10,484,899,134.46
  5. Step 5: Solve for x
    x = 10,484,899,134.46/105,632.16
  6. Step 6: Final answer
    x = 99,258.59

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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.