Home / 88,988.13-133,314.39-69,170.40

Finding the Fourth Proportional to 88,988.13, 133,314.39 and 69,170.40

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Solution

The fourth proportional to 88,988.13, 133,314.39 and 69,170.40 is: 103,625.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,988.13 : 133,314.39 = 69,170.40 : x
  2. Step 2: Convert to fraction form
    88,988.13/133,314.39 = 69,170.40/x
  3. Step 3: Cross multiply
    88,988.13x = 133,314.39 × 69,170.40
  4. Step 4: Simplify right side
    88,988.13x = 9,221,409,682.06
  5. Step 5: Solve for x
    x = 9,221,409,682.06/88,988.13
  6. Step 6: Final answer
    x = 103,625.17

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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.