Home / 118,400.40-177,543.02-39,487.98

Finding the Fourth Proportional to 118,400.40, 177,543.02 and 39,487.98

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Solution

The fourth proportional to 118,400.40, 177,543.02 and 39,487.98 is: 59,212.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,400.40 : 177,543.02 = 39,487.98 : x
  2. Step 2: Convert to fraction form
    118,400.40/177,543.02 = 39,487.98/x
  3. Step 3: Cross multiply
    118,400.40x = 177,543.02 × 39,487.98
  4. Step 4: Simplify right side
    118,400.40x = 7,010,815,222.90
  5. Step 5: Solve for x
    x = 7,010,815,222.90/118,400.40
  6. Step 6: Final answer
    x = 59,212.77

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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.