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Finding the Fourth Proportional to 158,145.60, 237,218.40 and 39,820.80

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Solution

The fourth proportional to 158,145.60, 237,218.40 and 39,820.80 is: 59,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,145.60 : 237,218.40 = 39,820.80 : x
  2. Step 2: Convert to fraction form
    158,145.60/237,218.40 = 39,820.80/x
  3. Step 3: Cross multiply
    158,145.60x = 237,218.40 × 39,820.80
  4. Step 4: Simplify right side
    158,145.60x = 9,446,226,462.72
  5. Step 5: Solve for x
    x = 9,446,226,462.72/158,145.60
  6. Step 6: Final answer
    x = 59,731.20

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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.