Home / 105,428.76-158,118.30-38,832.72

Finding the Fourth Proportional to 105,428.76, 158,118.30 and 38,832.72

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Solution

The fourth proportional to 105,428.76, 158,118.30 and 38,832.72 is: 58,239.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,428.76 : 158,118.30 = 38,832.72 : x
  2. Step 2: Convert to fraction form
    105,428.76/158,118.30 = 38,832.72/x
  3. Step 3: Cross multiply
    105,428.76x = 158,118.30 × 38,832.72
  4. Step 4: Simplify right side
    105,428.76x = 6,140,163,670.78
  5. Step 5: Solve for x
    x = 6,140,163,670.78/105,428.76
  6. Step 6: Final answer
    x = 58,239.93

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1.5x scale

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.