Home / 77,117.04-114,973.07-75,177.90

Finding the Fourth Proportional to 77,117.04, 114,973.07 and 75,177.90

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Solution

The fourth proportional to 77,117.04, 114,973.07 and 75,177.90 is: 112,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,117.04 : 114,973.07 = 75,177.90 : x
  2. Step 2: Convert to fraction form
    77,117.04/114,973.07 = 75,177.90/x
  3. Step 3: Cross multiply
    77,117.04x = 114,973.07 × 75,177.90
  4. Step 4: Simplify right side
    77,117.04x = 8,643,433,583.26
  5. Step 5: Solve for x
    x = 8,643,433,583.26/77,117.04
  6. Step 6: Final answer
    x = 112,082.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.