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Finding the Fourth Proportional to 125,453.70, 173,047.37 and 74,430.30

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Solution

The fourth proportional to 125,453.70, 173,047.37 and 74,430.30 is: 102,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,453.70 : 173,047.37 = 74,430.30 : x
  2. Step 2: Convert to fraction form
    125,453.70/173,047.37 = 74,430.30/x
  3. Step 3: Cross multiply
    125,453.70x = 173,047.37 × 74,430.30
  4. Step 4: Simplify right side
    125,453.70x = 12,879,967,291.16
  5. Step 5: Solve for x
    x = 12,879,967,291.16/125,453.70
  6. Step 6: Final answer
    x = 102,667.10

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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.