Home / 78,218.01-116,320.73-75,726.89

Finding the Fourth Proportional to 78,218.01, 116,320.73 and 75,726.89

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Solution

The fourth proportional to 78,218.01, 116,320.73 and 75,726.89 is: 112,616.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,218.01 : 116,320.73 = 75,726.89 : x
  2. Step 2: Convert to fraction form
    78,218.01/116,320.73 = 75,726.89/x
  3. Step 3: Cross multiply
    78,218.01x = 116,320.73 × 75,726.89
  4. Step 4: Simplify right side
    78,218.01x = 8,808,606,165.19
  5. Step 5: Solve for x
    x = 8,808,606,165.19/78,218.01
  6. Step 6: Final answer
    x = 112,616.09

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1.5x scale

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.