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Finding the Fourth Proportional to 125,430.83, 173,103.08 and 70,983.03

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Solution

The fourth proportional to 125,430.83, 173,103.08 and 70,983.03 is: 97,961.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,430.83 : 173,103.08 = 70,983.03 : x
  2. Step 2: Convert to fraction form
    125,430.83/173,103.08 = 70,983.03/x
  3. Step 3: Cross multiply
    125,430.83x = 173,103.08 × 70,983.03
  4. Step 4: Simplify right side
    125,430.83x = 12,287,381,414.95
  5. Step 5: Solve for x
    x = 12,287,381,414.95/125,430.83
  6. Step 6: Final answer
    x = 97,961.41

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1.5x scale

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.