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Finding the Fourth Proportional to 153,335.32, 211,600.47 and 85,352.19

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Solution

The fourth proportional to 153,335.32, 211,600.47 and 85,352.19 is: 117,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,335.32 : 211,600.47 = 85,352.19 : x
  2. Step 2: Convert to fraction form
    153,335.32/211,600.47 = 85,352.19/x
  3. Step 3: Cross multiply
    153,335.32x = 211,600.47 × 85,352.19
  4. Step 4: Simplify right side
    153,335.32x = 18,060,563,519.53
  5. Step 5: Solve for x
    x = 18,060,563,519.53/153,335.32
  6. Step 6: Final answer
    x = 117,784.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.