Home / 105,266.18-157,899.95-42,091.61

Finding the Fourth Proportional to 105,266.18, 157,899.95 and 42,091.61

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Solution

The fourth proportional to 105,266.18, 157,899.95 and 42,091.61 is: 63,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,266.18 : 157,899.95 = 42,091.61 : x
  2. Step 2: Convert to fraction form
    105,266.18/157,899.95 = 42,091.61/x
  3. Step 3: Cross multiply
    105,266.18x = 157,899.95 × 42,091.61
  4. Step 4: Simplify right side
    105,266.18x = 6,646,262,324.92
  5. Step 5: Solve for x
    x = 6,646,262,324.92/105,266.18
  6. Step 6: Final answer
    x = 63,137.68

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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.