Home / 134,587.84-185,747.52-78,001.60

Finding the Fourth Proportional to 134,587.84, 185,747.52 and 78,001.60

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Solution

The fourth proportional to 134,587.84, 185,747.52 and 78,001.60 is: 107,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,587.84 : 185,747.52 = 78,001.60 : x
  2. Step 2: Convert to fraction form
    134,587.84/185,747.52 = 78,001.60/x
  3. Step 3: Cross multiply
    134,587.84x = 185,747.52 × 78,001.60
  4. Step 4: Simplify right side
    134,587.84x = 14,488,603,756.03
  5. Step 5: Solve for x
    x = 14,488,603,756.03/134,587.84
  6. Step 6: Final answer
    x = 107,651.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.