Home / 97,725.20-146,587.80-42,429.20

Finding the Fourth Proportional to 97,725.20, 146,587.80 and 42,429.20

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Solution

The fourth proportional to 97,725.20, 146,587.80 and 42,429.20 is: 63,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,725.20 : 146,587.80 = 42,429.20 : x
  2. Step 2: Convert to fraction form
    97,725.20/146,587.80 = 42,429.20/x
  3. Step 3: Cross multiply
    97,725.20x = 146,587.80 × 42,429.20
  4. Step 4: Simplify right side
    97,725.20x = 6,219,603,083.76
  5. Step 5: Solve for x
    x = 6,219,603,083.76/97,725.20
  6. Step 6: Final answer
    x = 63,643.80

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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.