Home / 99,281.32-148,885.93-54,335.90

Finding the Fourth Proportional to 99,281.32, 148,885.93 and 54,335.90

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Solution

The fourth proportional to 99,281.32, 148,885.93 and 54,335.90 is: 81,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,281.32 : 148,885.93 = 54,335.90 : x
  2. Step 2: Convert to fraction form
    99,281.32/148,885.93 = 54,335.90/x
  3. Step 3: Cross multiply
    99,281.32x = 148,885.93 × 54,335.90
  4. Step 4: Simplify right side
    99,281.32x = 8,089,851,003.89
  5. Step 5: Solve for x
    x = 8,089,851,003.89/99,281.32
  6. Step 6: Final answer
    x = 81,484.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.