Home / 101,845.75-140,547.14-57,133.75

Finding the Fourth Proportional to 101,845.75, 140,547.14 and 57,133.75

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Solution

The fourth proportional to 101,845.75, 140,547.14 and 57,133.75 is: 78,844.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,845.75 : 140,547.14 = 57,133.75 : x
  2. Step 2: Convert to fraction form
    101,845.75/140,547.14 = 57,133.75/x
  3. Step 3: Cross multiply
    101,845.75x = 140,547.14 × 57,133.75
  4. Step 4: Simplify right side
    101,845.75x = 8,029,985,159.98
  5. Step 5: Solve for x
    x = 8,029,985,159.98/101,845.75
  6. Step 6: Final answer
    x = 78,844.58

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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.