Home / 102,115.56-153,184.32-42,957.24

Finding the Fourth Proportional to 102,115.56, 153,184.32 and 42,957.24

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Solution

The fourth proportional to 102,115.56, 153,184.32 and 42,957.24 is: 64,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,115.56 : 153,184.32 = 42,957.24 : x
  2. Step 2: Convert to fraction form
    102,115.56/153,184.32 = 42,957.24/x
  3. Step 3: Cross multiply
    102,115.56x = 153,184.32 × 42,957.24
  4. Step 4: Simplify right side
    102,115.56x = 6,580,375,598.48
  5. Step 5: Solve for x
    x = 6,580,375,598.48/102,115.56
  6. Step 6: Final answer
    x = 64,440.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.