Home / 145,825.60-218,711.40-40,622.80

Finding the Fourth Proportional to 145,825.60, 218,711.40 and 40,622.80

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Solution

The fourth proportional to 145,825.60, 218,711.40 and 40,622.80 is: 60,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,825.60 : 218,711.40 = 40,622.80 : x
  2. Step 2: Convert to fraction form
    145,825.60/218,711.40 = 40,622.80/x
  3. Step 3: Cross multiply
    145,825.60x = 218,711.40 × 40,622.80
  4. Step 4: Simplify right side
    145,825.60x = 8,884,669,459.92
  5. Step 5: Solve for x
    x = 8,884,669,459.92/145,825.60
  6. Step 6: Final answer
    x = 60,926.68

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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.