Home / 137,784.41-190,153.47-77,359.02

Finding the Fourth Proportional to 137,784.41, 190,153.47 and 77,359.02

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Solution

The fourth proportional to 137,784.41, 190,153.47 and 77,359.02 is: 106,761.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,784.41 : 190,153.47 = 77,359.02 : x
  2. Step 2: Convert to fraction form
    137,784.41/190,153.47 = 77,359.02/x
  3. Step 3: Cross multiply
    137,784.41x = 190,153.47 × 77,359.02
  4. Step 4: Simplify right side
    137,784.41x = 14,710,086,088.80
  5. Step 5: Solve for x
    x = 14,710,086,088.80/137,784.41
  6. Step 6: Final answer
    x = 106,761.62

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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.