Home / 97,288.74-144,965.91-86,677.20

Finding the Fourth Proportional to 97,288.74, 144,965.91 and 86,677.20

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Solution

The fourth proportional to 97,288.74, 144,965.91 and 86,677.20 is: 129,154.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,288.74 : 144,965.91 = 86,677.20 : x
  2. Step 2: Convert to fraction form
    97,288.74/144,965.91 = 86,677.20/x
  3. Step 3: Cross multiply
    97,288.74x = 144,965.91 × 86,677.20
  4. Step 4: Simplify right side
    97,288.74x = 12,565,239,174.25
  5. Step 5: Solve for x
    x = 12,565,239,174.25/97,288.74
  6. Step 6: Final answer
    x = 129,154.10

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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.