Home / 115,643.67-159,588.53-64,658.22

Finding the Fourth Proportional to 115,643.67, 159,588.53 and 64,658.22

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Solution

The fourth proportional to 115,643.67, 159,588.53 and 64,658.22 is: 89,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,643.67 : 159,588.53 = 64,658.22 : x
  2. Step 2: Convert to fraction form
    115,643.67/159,588.53 = 64,658.22/x
  3. Step 3: Cross multiply
    115,643.67x = 159,588.53 × 64,658.22
  4. Step 4: Simplify right side
    115,643.67x = 10,318,710,282.22
  5. Step 5: Solve for x
    x = 10,318,710,282.22/115,643.67
  6. Step 6: Final answer
    x = 89,228.49

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1.5x scale

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.