Home / 105,251.83-157,953.38-42,035.72

Finding the Fourth Proportional to 105,251.83, 157,953.38 and 42,035.72

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Solution

The fourth proportional to 105,251.83, 157,953.38 and 42,035.72 is: 63,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,251.83 : 157,953.38 = 42,035.72 : x
  2. Step 2: Convert to fraction form
    105,251.83/157,953.38 = 42,035.72/x
  3. Step 3: Cross multiply
    105,251.83x = 157,953.38 × 42,035.72
  4. Step 4: Simplify right side
    105,251.83x = 6,639,683,054.79
  5. Step 5: Solve for x
    x = 6,639,683,054.79/105,251.83
  6. Step 6: Final answer
    x = 63,083.78

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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.