Home / 115,670.84-159,624.81-64,683.66

Finding the Fourth Proportional to 115,670.84, 159,624.81 and 64,683.66

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Solution

The fourth proportional to 115,670.84, 159,624.81 and 64,683.66 is: 89,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,670.84 : 159,624.81 = 64,683.66 : x
  2. Step 2: Convert to fraction form
    115,670.84/159,624.81 = 64,683.66/x
  3. Step 3: Cross multiply
    115,670.84x = 159,624.81 × 64,683.66
  4. Step 4: Simplify right side
    115,670.84x = 10,325,117,536.20
  5. Step 5: Solve for x
    x = 10,325,117,536.20/115,670.84
  6. Step 6: Final answer
    x = 89,262.93

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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.