Home / 101,382.17-139,901.76-56,057.45

Finding the Fourth Proportional to 101,382.17, 139,901.76 and 56,057.45

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Solution

The fourth proportional to 101,382.17, 139,901.76 and 56,057.45 is: 77,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,382.17 : 139,901.76 = 56,057.45 : x
  2. Step 2: Convert to fraction form
    101,382.17/139,901.76 = 56,057.45/x
  3. Step 3: Cross multiply
    101,382.17x = 139,901.76 × 56,057.45
  4. Step 4: Simplify right side
    101,382.17x = 7,842,535,216.60
  5. Step 5: Solve for x
    x = 7,842,535,216.60/101,382.17
  6. Step 6: Final answer
    x = 77,356.16

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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.