Home / 105,345.92-145,376.36-57,598.76

Finding the Fourth Proportional to 105,345.92, 145,376.36 and 57,598.76

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Solution

The fourth proportional to 105,345.92, 145,376.36 and 57,598.76 is: 79,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,345.92 : 145,376.36 = 57,598.76 : x
  2. Step 2: Convert to fraction form
    105,345.92/145,376.36 = 57,598.76/x
  3. Step 3: Cross multiply
    105,345.92x = 145,376.36 × 57,598.76
  4. Step 4: Simplify right side
    105,345.92x = 8,373,497,054.44
  5. Step 5: Solve for x
    x = 8,373,497,054.44/105,345.92
  6. Step 6: Final answer
    x = 79,485.73

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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.