Home / 102,729.66-154,113.93-58,406.46

Finding the Fourth Proportional to 102,729.66, 154,113.93 and 58,406.46

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Solution

The fourth proportional to 102,729.66, 154,113.93 and 58,406.46 is: 87,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,729.66 : 154,113.93 = 58,406.46 : x
  2. Step 2: Convert to fraction form
    102,729.66/154,113.93 = 58,406.46/x
  3. Step 3: Cross multiply
    102,729.66x = 154,113.93 × 58,406.46
  4. Step 4: Simplify right side
    102,729.66x = 9,001,249,087.99
  5. Step 5: Solve for x
    x = 9,001,249,087.99/102,729.66
  6. Step 6: Final answer
    x = 87,620.74

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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.