Home / 105,173.44-145,138.62-57,426.76

Finding the Fourth Proportional to 105,173.44, 145,138.62 and 57,426.76

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Solution

The fourth proportional to 105,173.44, 145,138.62 and 57,426.76 is: 79,248.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,173.44 : 145,138.62 = 57,426.76 : x
  2. Step 2: Convert to fraction form
    105,173.44/145,138.62 = 57,426.76/x
  3. Step 3: Cross multiply
    105,173.44x = 145,138.62 × 57,426.76
  4. Step 4: Simplify right side
    105,173.44x = 8,334,840,697.47
  5. Step 5: Solve for x
    x = 8,334,840,697.47/105,173.44
  6. Step 6: Final answer
    x = 79,248.53

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.