Home / 115,780.17-159,785.22-64,798.01

Finding the Fourth Proportional to 115,780.17, 159,785.22 and 64,798.01

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Solution

The fourth proportional to 115,780.17, 159,785.22 and 64,798.01 is: 89,426.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,780.17 : 159,785.22 = 64,798.01 : x
  2. Step 2: Convert to fraction form
    115,780.17/159,785.22 = 64,798.01/x
  3. Step 3: Cross multiply
    115,780.17x = 159,785.22 × 64,798.01
  4. Step 4: Simplify right side
    115,780.17x = 10,353,764,283.41
  5. Step 5: Solve for x
    x = 10,353,764,283.41/115,780.17
  6. Step 6: Final answer
    x = 89,426.06

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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.