Home / 148,369.02-204,716.88-87,909.45

Finding the Fourth Proportional to 148,369.02, 204,716.88 and 87,909.45

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Solution

The fourth proportional to 148,369.02, 204,716.88 and 87,909.45 is: 121,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,369.02 : 204,716.88 = 87,909.45 : x
  2. Step 2: Convert to fraction form
    148,369.02/204,716.88 = 87,909.45/x
  3. Step 3: Cross multiply
    148,369.02x = 204,716.88 × 87,909.45
  4. Step 4: Simplify right side
    148,369.02x = 17,996,548,326.52
  5. Step 5: Solve for x
    x = 17,996,548,326.52/148,369.02
  6. Step 6: Final answer
    x = 121,295.86

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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.