Home / 145,520.25-218,280.45-65,464.71

Finding the Fourth Proportional to 145,520.25, 218,280.45 and 65,464.71

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Solution

The fourth proportional to 145,520.25, 218,280.45 and 65,464.71 is: 98,197.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,520.25 : 218,280.45 = 65,464.71 : x
  2. Step 2: Convert to fraction form
    145,520.25/218,280.45 = 65,464.71/x
  3. Step 3: Cross multiply
    145,520.25x = 218,280.45 × 65,464.71
  4. Step 4: Simplify right side
    145,520.25x = 14,289,666,357.92
  5. Step 5: Solve for x
    x = 14,289,666,357.92/145,520.25
  6. Step 6: Final answer
    x = 98,197.10

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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.