Home / 115,276.42-159,081.15-64,289.21

Finding the Fourth Proportional to 115,276.42, 159,081.15 and 64,289.21

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Solution

The fourth proportional to 115,276.42, 159,081.15 and 64,289.21 is: 88,718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,276.42 : 159,081.15 = 64,289.21 : x
  2. Step 2: Convert to fraction form
    115,276.42/159,081.15 = 64,289.21/x
  3. Step 3: Cross multiply
    115,276.42x = 159,081.15 × 64,289.21
  4. Step 4: Simplify right side
    115,276.42x = 10,227,201,459.39
  5. Step 5: Solve for x
    x = 10,227,201,459.39/115,276.42
  6. Step 6: Final answer
    x = 88,718.94

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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.