Home / 153,743.24-212,166.02-85,758.52

Finding the Fourth Proportional to 153,743.24, 212,166.02 and 85,758.52

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Solution

The fourth proportional to 153,743.24, 212,166.02 and 85,758.52 is: 118,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,743.24 : 212,166.02 = 85,758.52 : x
  2. Step 2: Convert to fraction form
    153,743.24/212,166.02 = 85,758.52/x
  3. Step 3: Cross multiply
    153,743.24x = 212,166.02 × 85,758.52
  4. Step 4: Simplify right side
    153,743.24x = 18,195,043,869.49
  5. Step 5: Solve for x
    x = 18,195,043,869.49/153,743.24
  6. Step 6: Final answer
    x = 118,346.95

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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.