Home / 101,477.11-140,036.31-56,155.06

Finding the Fourth Proportional to 101,477.11, 140,036.31 and 56,155.06

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Solution

The fourth proportional to 101,477.11, 140,036.31 and 56,155.06 is: 77,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,477.11 : 140,036.31 = 56,155.06 : x
  2. Step 2: Convert to fraction form
    101,477.11/140,036.31 = 56,155.06/x
  3. Step 3: Cross multiply
    101,477.11x = 140,036.31 × 56,155.06
  4. Step 4: Simplify right side
    101,477.11x = 7,863,747,040.14
  5. Step 5: Solve for x
    x = 7,863,747,040.14/101,477.11
  6. Step 6: Final answer
    x = 77,492.82

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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.