Home / 105,901.29-158,888.39-66,412.17

Finding the Fourth Proportional to 105,901.29, 158,888.39 and 66,412.17

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Solution

The fourth proportional to 105,901.29, 158,888.39 and 66,412.17 is: 99,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,901.29 : 158,888.39 = 66,412.17 : x
  2. Step 2: Convert to fraction form
    105,901.29/158,888.39 = 66,412.17/x
  3. Step 3: Cross multiply
    105,901.29x = 158,888.39 × 66,412.17
  4. Step 4: Simplify right side
    105,901.29x = 10,552,122,435.65
  5. Step 5: Solve for x
    x = 10,552,122,435.65/105,901.29
  6. Step 6: Final answer
    x = 99,641.11

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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.