Home / 105,091.80-145,025.46-57,345.95

Finding the Fourth Proportional to 105,091.80, 145,025.46 and 57,345.95

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Solution

The fourth proportional to 105,091.80, 145,025.46 and 57,345.95 is: 79,136.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,091.80 : 145,025.46 = 57,345.95 : x
  2. Step 2: Convert to fraction form
    105,091.80/145,025.46 = 57,345.95/x
  3. Step 3: Cross multiply
    105,091.80x = 145,025.46 × 57,345.95
  4. Step 4: Simplify right side
    105,091.80x = 8,316,622,052.76
  5. Step 5: Solve for x
    x = 8,316,622,052.76/105,091.80
  6. Step 6: Final answer
    x = 79,136.74

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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.