Home / 106,437.84-159,570.18-39,840.66

Finding the Fourth Proportional to 106,437.84, 159,570.18 and 39,840.66

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Solution

The fourth proportional to 106,437.84, 159,570.18 and 39,840.66 is: 59,728.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,437.84 : 159,570.18 = 39,840.66 : x
  2. Step 2: Convert to fraction form
    106,437.84/159,570.18 = 39,840.66/x
  3. Step 3: Cross multiply
    106,437.84x = 159,570.18 × 39,840.66
  4. Step 4: Simplify right side
    106,437.84x = 6,357,381,287.52
  5. Step 5: Solve for x
    x = 6,357,381,287.52/106,437.84
  6. Step 6: Final answer
    x = 59,728.58

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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.