Home / 121,148.18-181,633.57-57,084.50

Finding the Fourth Proportional to 121,148.18, 181,633.57 and 57,084.50

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Solution

The fourth proportional to 121,148.18, 181,633.57 and 57,084.50 is: 85,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.18 : 181,633.57 = 57,084.50 : x
  2. Step 2: Convert to fraction form
    121,148.18/181,633.57 = 57,084.50/x
  3. Step 3: Cross multiply
    121,148.18x = 181,633.57 × 57,084.50
  4. Step 4: Simplify right side
    121,148.18x = 10,368,461,526.67
  5. Step 5: Solve for x
    x = 10,368,461,526.67/121,148.18
  6. Step 6: Final answer
    x = 85,584.95

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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.