Home / 137,892.47-190,281.36-77,473.17

Finding the Fourth Proportional to 137,892.47, 190,281.36 and 77,473.17

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Solution

The fourth proportional to 137,892.47, 190,281.36 and 77,473.17 is: 106,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,892.47 : 190,281.36 = 77,473.17 : x
  2. Step 2: Convert to fraction form
    137,892.47/190,281.36 = 77,473.17/x
  3. Step 3: Cross multiply
    137,892.47x = 190,281.36 × 77,473.17
  4. Step 4: Simplify right side
    137,892.47x = 14,741,700,151.11
  5. Step 5: Solve for x
    x = 14,741,700,151.11/137,892.47
  6. Step 6: Final answer
    x = 106,907.22

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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.