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Finding the Fourth Proportional to 101,601.60, 152,402.40 and 42,436.80

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Solution

The fourth proportional to 101,601.60, 152,402.40 and 42,436.80 is: 63,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,601.60 : 152,402.40 = 42,436.80 : x
  2. Step 2: Convert to fraction form
    101,601.60/152,402.40 = 42,436.80/x
  3. Step 3: Cross multiply
    101,601.60x = 152,402.40 × 42,436.80
  4. Step 4: Simplify right side
    101,601.60x = 6,467,470,168.32
  5. Step 5: Solve for x
    x = 6,467,470,168.32/101,601.60
  6. Step 6: Final answer
    x = 63,655.20

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1.5x scale

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.