Home / 115,838.63-159,848.48-64,839.68

Finding the Fourth Proportional to 115,838.63, 159,848.48 and 64,839.68

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Solution

The fourth proportional to 115,838.63, 159,848.48 and 64,839.68 is: 89,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,838.63 : 159,848.48 = 64,839.68 : x
  2. Step 2: Convert to fraction form
    115,838.63/159,848.48 = 64,839.68/x
  3. Step 3: Cross multiply
    115,838.63x = 159,848.48 × 64,839.68
  4. Step 4: Simplify right side
    115,838.63x = 10,364,524,853.41
  5. Step 5: Solve for x
    x = 10,364,524,853.41/115,838.63
  6. Step 6: Final answer
    x = 89,473.82

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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.