Home / 115,295.48-159,115.08-64,997.72

Finding the Fourth Proportional to 115,295.48, 159,115.08 and 64,997.72

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Solution

The fourth proportional to 115,295.48, 159,115.08 and 64,997.72 is: 89,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,295.48 : 159,115.08 = 64,997.72 : x
  2. Step 2: Convert to fraction form
    115,295.48/159,115.08 = 64,997.72/x
  3. Step 3: Cross multiply
    115,295.48x = 159,115.08 × 64,997.72
  4. Step 4: Simplify right side
    115,295.48x = 10,342,117,417.62
  5. Step 5: Solve for x
    x = 10,342,117,417.62/115,295.48
  6. Step 6: Final answer
    x = 89,700.98

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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.