Home / 141,158.48-211,460.92-81,869.60

Finding the Fourth Proportional to 141,158.48, 211,460.92 and 81,869.60

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Solution

The fourth proportional to 141,158.48, 211,460.92 and 81,869.60 is: 122,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,158.48 : 211,460.92 = 81,869.60 : x
  2. Step 2: Convert to fraction form
    141,158.48/211,460.92 = 81,869.60/x
  3. Step 3: Cross multiply
    141,158.48x = 211,460.92 × 81,869.60
  4. Step 4: Simplify right side
    141,158.48x = 17,312,220,936.03
  5. Step 5: Solve for x
    x = 17,312,220,936.03/141,158.48
  6. Step 6: Final answer
    x = 122,643.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.