Home / 101,381.02-139,898.33-56,059.60

Finding the Fourth Proportional to 101,381.02, 139,898.33 and 56,059.60

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Solution

The fourth proportional to 101,381.02, 139,898.33 and 56,059.60 is: 77,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,381.02 : 139,898.33 = 56,059.60 : x
  2. Step 2: Convert to fraction form
    101,381.02/139,898.33 = 56,059.60/x
  3. Step 3: Cross multiply
    101,381.02x = 139,898.33 × 56,059.60
  4. Step 4: Simplify right side
    101,381.02x = 7,842,644,140.17
  5. Step 5: Solve for x
    x = 7,842,644,140.17/101,381.02
  6. Step 6: Final answer
    x = 77,358.11

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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.