Home / 115,316.85-173,062.80-77,787.93

Finding the Fourth Proportional to 115,316.85, 173,062.80 and 77,787.93

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Solution

The fourth proportional to 115,316.85, 173,062.80 and 77,787.93 is: 116,740.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,316.85 : 173,062.80 = 77,787.93 : x
  2. Step 2: Convert to fraction form
    115,316.85/173,062.80 = 77,787.93/x
  3. Step 3: Cross multiply
    115,316.85x = 173,062.80 × 77,787.93
  4. Step 4: Simplify right side
    115,316.85x = 13,462,196,972.00
  5. Step 5: Solve for x
    x = 13,462,196,972.00/115,316.85
  6. Step 6: Final answer
    x = 116,740.94

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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.