Home / 115,316.45-159,136.95-64,327.91

Finding the Fourth Proportional to 115,316.45, 159,136.95 and 64,327.91

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Solution

The fourth proportional to 115,316.45, 159,136.95 and 64,327.91 is: 88,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,316.45 : 159,136.95 = 64,327.91 : x
  2. Step 2: Convert to fraction form
    115,316.45/159,136.95 = 64,327.91/x
  3. Step 3: Cross multiply
    115,316.45x = 159,136.95 × 64,327.91
  4. Step 4: Simplify right side
    115,316.45x = 10,236,946,601.59
  5. Step 5: Solve for x
    x = 10,236,946,601.59/115,316.45
  6. Step 6: Final answer
    x = 88,772.65

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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.