Home / 137,816.37-190,184.31-77,387.13

Finding the Fourth Proportional to 137,816.37, 190,184.31 and 77,387.13

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Solution

The fourth proportional to 137,816.37, 190,184.31 and 77,387.13 is: 106,792.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,816.37 : 190,184.31 = 77,387.13 : x
  2. Step 2: Convert to fraction form
    137,816.37/190,184.31 = 77,387.13/x
  3. Step 3: Cross multiply
    137,816.37x = 190,184.31 × 77,387.13
  4. Step 4: Simplify right side
    137,816.37x = 14,717,817,921.93
  5. Step 5: Solve for x
    x = 14,717,817,921.93/137,816.37
  6. Step 6: Final answer
    x = 106,792.96

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1.5x scale

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.