Home / 119,855.16-165,400.02-66,140.22

Finding the Fourth Proportional to 119,855.16, 165,400.02 and 66,140.22

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Solution

The fourth proportional to 119,855.16, 165,400.02 and 66,140.22 is: 91,273.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,855.16 : 165,400.02 = 66,140.22 : x
  2. Step 2: Convert to fraction form
    119,855.16/165,400.02 = 66,140.22/x
  3. Step 3: Cross multiply
    119,855.16x = 165,400.02 × 66,140.22
  4. Step 4: Simplify right side
    119,855.16x = 10,939,593,710.80
  5. Step 5: Solve for x
    x = 10,939,593,710.80/119,855.16
  6. Step 6: Final answer
    x = 91,273.45

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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.