Home / 98,678.10-148,018.50-32,118.51

Finding the Fourth Proportional to 98,678.10, 148,018.50 and 32,118.51

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Solution

The fourth proportional to 98,678.10, 148,018.50 and 32,118.51 is: 48,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,678.10 : 148,018.50 = 32,118.51 : x
  2. Step 2: Convert to fraction form
    98,678.10/148,018.50 = 32,118.51/x
  3. Step 3: Cross multiply
    98,678.10x = 148,018.50 × 32,118.51
  4. Step 4: Simplify right side
    98,678.10x = 4,754,133,672.44
  5. Step 5: Solve for x
    x = 4,754,133,672.44/98,678.10
  6. Step 6: Final answer
    x = 48,178.20

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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.