Home / 208,723.86-288,039.02-118,077.91

Finding the Fourth Proportional to 208,723.86, 288,039.02 and 118,077.91

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Solution

The fourth proportional to 208,723.86, 288,039.02 and 118,077.91 is: 162,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,723.86 : 288,039.02 = 118,077.91 : x
  2. Step 2: Convert to fraction form
    208,723.86/288,039.02 = 118,077.91/x
  3. Step 3: Cross multiply
    208,723.86x = 288,039.02 × 118,077.91
  4. Step 4: Simplify right side
    208,723.86x = 34,011,044,169.56
  5. Step 5: Solve for x
    x = 34,011,044,169.56/208,723.86
  6. Step 6: Final answer
    x = 162,947.56

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Why These Related Problems?

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