Home / 103,701.10-155,378.85-97,480.30

Finding the Fourth Proportional to 103,701.10, 155,378.85 and 97,480.30

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Solution

The fourth proportional to 103,701.10, 155,378.85 and 97,480.30 is: 146,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,701.10 : 155,378.85 = 97,480.30 : x
  2. Step 2: Convert to fraction form
    103,701.10/155,378.85 = 97,480.30/x
  3. Step 3: Cross multiply
    103,701.10x = 155,378.85 × 97,480.30
  4. Step 4: Simplify right side
    103,701.10x = 15,146,376,911.66
  5. Step 5: Solve for x
    x = 15,146,376,911.66/103,701.10
  6. Step 6: Final answer
    x = 146,058.02

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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.