Home / 100,260.14-138,349.80-57,810.48

Finding the Fourth Proportional to 100,260.14, 138,349.80 and 57,810.48

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Solution

The fourth proportional to 100,260.14, 138,349.80 and 57,810.48 is: 79,773.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,260.14 : 138,349.80 = 57,810.48 : x
  2. Step 2: Convert to fraction form
    100,260.14/138,349.80 = 57,810.48/x
  3. Step 3: Cross multiply
    100,260.14x = 138,349.80 × 57,810.48
  4. Step 4: Simplify right side
    100,260.14x = 7,998,068,345.90
  5. Step 5: Solve for x
    x = 7,998,068,345.90/100,260.14
  6. Step 6: Final answer
    x = 79,773.16

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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.