Home / 105,149.36-145,097.40-59,815.28

Finding the Fourth Proportional to 105,149.36, 145,097.40 and 59,815.28

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Solution

The fourth proportional to 105,149.36, 145,097.40 and 59,815.28 is: 82,540.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,149.36 : 145,097.40 = 59,815.28 : x
  2. Step 2: Convert to fraction form
    105,149.36/145,097.40 = 59,815.28/x
  3. Step 3: Cross multiply
    105,149.36x = 145,097.40 × 59,815.28
  4. Step 4: Simplify right side
    105,149.36x = 8,679,041,608.27
  5. Step 5: Solve for x
    x = 8,679,041,608.27/105,149.36
  6. Step 6: Final answer
    x = 82,540.13

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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.