Home / 105,345.92-157,995.72-30,449.76

Finding the Fourth Proportional to 105,345.92, 157,995.72 and 30,449.76

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Solution

The fourth proportional to 105,345.92, 157,995.72 and 30,449.76 is: 45,667.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,345.92 : 157,995.72 = 30,449.76 : x
  2. Step 2: Convert to fraction form
    105,345.92/157,995.72 = 30,449.76/x
  3. Step 3: Cross multiply
    105,345.92x = 157,995.72 × 30,449.76
  4. Step 4: Simplify right side
    105,345.92x = 4,810,931,755.03
  5. Step 5: Solve for x
    x = 4,810,931,755.03/105,345.92
  6. Step 6: Final answer
    x = 45,667.95

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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.