Home / 145,962.20-218,918.28-40,756.88

Finding the Fourth Proportional to 145,962.20, 218,918.28 and 40,756.88

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Solution

The fourth proportional to 145,962.20, 218,918.28 and 40,756.88 is: 61,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,962.20 : 218,918.28 = 40,756.88 : x
  2. Step 2: Convert to fraction form
    145,962.20/218,918.28 = 40,756.88/x
  3. Step 3: Cross multiply
    145,962.20x = 218,918.28 × 40,756.88
  4. Step 4: Simplify right side
    145,962.20x = 8,922,426,067.77
  5. Step 5: Solve for x
    x = 8,922,426,067.77/145,962.20
  6. Step 6: Final answer
    x = 61,128.33

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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.