Home / 153,822.76-212,268.54-85,836.04

Finding the Fourth Proportional to 153,822.76, 212,268.54 and 85,836.04

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Solution

The fourth proportional to 153,822.76, 212,268.54 and 85,836.04 is: 118,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,822.76 : 212,268.54 = 85,836.04 : x
  2. Step 2: Convert to fraction form
    153,822.76/212,268.54 = 85,836.04/x
  3. Step 3: Cross multiply
    153,822.76x = 212,268.54 × 85,836.04
  4. Step 4: Simplify right side
    153,822.76x = 18,220,290,890.18
  5. Step 5: Solve for x
    x = 18,220,290,890.18/153,822.76
  6. Step 6: Final answer
    x = 118,449.90

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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.