Home / 141,818.47-195,709.53-77,287.74

Finding the Fourth Proportional to 141,818.47, 195,709.53 and 77,287.74

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Solution

The fourth proportional to 141,818.47, 195,709.53 and 77,287.74 is: 106,657.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,818.47 : 195,709.53 = 77,287.74 : x
  2. Step 2: Convert to fraction form
    141,818.47/195,709.53 = 77,287.74/x
  3. Step 3: Cross multiply
    141,818.47x = 195,709.53 × 77,287.74
  4. Step 4: Simplify right side
    141,818.47x = 15,125,947,270.16
  5. Step 5: Solve for x
    x = 15,125,947,270.16/141,818.47
  6. Step 6: Final answer
    x = 106,657.10

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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.