Home / 145,813.75-218,720.76-40,635.52

Finding the Fourth Proportional to 145,813.75, 218,720.76 and 40,635.52

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Solution

The fourth proportional to 145,813.75, 218,720.76 and 40,635.52 is: 60,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,813.75 : 218,720.76 = 40,635.52 : x
  2. Step 2: Convert to fraction form
    145,813.75/218,720.76 = 40,635.52/x
  3. Step 3: Cross multiply
    145,813.75x = 218,720.76 × 40,635.52
  4. Step 4: Simplify right side
    145,813.75x = 8,887,831,817.40
  5. Step 5: Solve for x
    x = 8,887,831,817.40/145,813.75
  6. Step 6: Final answer
    x = 60,953.32

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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.