Home / 145,933.40-218,900.10-40,752.20

Finding the Fourth Proportional to 145,933.40, 218,900.10 and 40,752.20

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Solution

The fourth proportional to 145,933.40, 218,900.10 and 40,752.20 is: 61,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,933.40 : 218,900.10 = 40,752.20 : x
  2. Step 2: Convert to fraction form
    145,933.40/218,900.10 = 40,752.20/x
  3. Step 3: Cross multiply
    145,933.40x = 218,900.10 × 40,752.20
  4. Step 4: Simplify right side
    145,933.40x = 8,920,660,655.22
  5. Step 5: Solve for x
    x = 8,920,660,655.22/145,933.40
  6. Step 6: Final answer
    x = 61,128.30

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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.