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Finding the Fourth Proportional to 134,646.88, 185,813.58 and 77,270.90

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Solution

The fourth proportional to 134,646.88, 185,813.58 and 77,270.90 is: 106,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,646.88 : 185,813.58 = 77,270.90 : x
  2. Step 2: Convert to fraction form
    134,646.88/185,813.58 = 77,270.90/x
  3. Step 3: Cross multiply
    134,646.88x = 185,813.58 × 77,270.90
  4. Step 4: Simplify right side
    134,646.88x = 14,357,982,558.82
  5. Step 5: Solve for x
    x = 14,357,982,558.82/134,646.88
  6. Step 6: Final answer
    x = 106,634.35

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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.