Home / 145,345.17-217,560.87-100,101

Finding the Fourth Proportional to 145,345.17, 217,560.87 and 100,101

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Solution

The fourth proportional to 145,345.17, 217,560.87 and 100,101 is: 149,836.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,345.17 : 217,560.87 = 100,101 : x
  2. Step 2: Convert to fraction form
    145,345.17/217,560.87 = 100,101/x
  3. Step 3: Cross multiply
    145,345.17x = 217,560.87 × 100,101
  4. Step 4: Simplify right side
    145,345.17x = 21,778,060,647.87
  5. Step 5: Solve for x
    x = 21,778,060,647.87/145,345.17
  6. Step 6: Final answer
    x = 149,836.84

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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.