Home / 115,271.60-159,071.64-64,285.88

Finding the Fourth Proportional to 115,271.60, 159,071.64 and 64,285.88

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Solution

The fourth proportional to 115,271.60, 159,071.64 and 64,285.88 is: 88,712.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,271.60 : 159,071.64 = 64,285.88 : x
  2. Step 2: Convert to fraction form
    115,271.60/159,071.64 = 64,285.88/x
  3. Step 3: Cross multiply
    115,271.60x = 159,071.64 × 64,285.88
  4. Step 4: Simplify right side
    115,271.60x = 10,226,060,360.44
  5. Step 5: Solve for x
    x = 10,226,060,360.44/115,271.60
  6. Step 6: Final answer
    x = 88,712.75

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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.