Home / 147,760.60-221,780.10-77,690.20

Finding the Fourth Proportional to 147,760.60, 221,780.10 and 77,690.20

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Solution

The fourth proportional to 147,760.60, 221,780.10 and 77,690.20 is: 116,608.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,760.60 : 221,780.10 = 77,690.20 : x
  2. Step 2: Convert to fraction form
    147,760.60/221,780.10 = 77,690.20/x
  3. Step 3: Cross multiply
    147,760.60x = 221,780.10 × 77,690.20
  4. Step 4: Simplify right side
    147,760.60x = 17,230,140,325.02
  5. Step 5: Solve for x
    x = 17,230,140,325.02/147,760.60
  6. Step 6: Final answer
    x = 116,608.49

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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.