Home / 86,767.60-130,151.40-72,005.35

Finding the Fourth Proportional to 86,767.60, 130,151.40 and 72,005.35

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Solution

The fourth proportional to 86,767.60, 130,151.40 and 72,005.35 is: 108,008.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,767.60 : 130,151.40 = 72,005.35 : x
  2. Step 2: Convert to fraction form
    86,767.60/130,151.40 = 72,005.35/x
  3. Step 3: Cross multiply
    86,767.60x = 130,151.40 × 72,005.35
  4. Step 4: Simplify right side
    86,767.60x = 9,371,597,109.99
  5. Step 5: Solve for x
    x = 9,371,597,109.99/86,767.60
  6. Step 6: Final answer
    x = 108,008.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.