Home / 145,608.75-218,412.95-45,777.66

Finding the Fourth Proportional to 145,608.75, 218,412.95 and 45,777.66

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Solution

The fourth proportional to 145,608.75, 218,412.95 and 45,777.66 is: 68,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,608.75 : 218,412.95 = 45,777.66 : x
  2. Step 2: Convert to fraction form
    145,608.75/218,412.95 = 45,777.66/x
  3. Step 3: Cross multiply
    145,608.75x = 218,412.95 × 45,777.66
  4. Step 4: Simplify right side
    145,608.75x = 9,998,433,535.81
  5. Step 5: Solve for x
    x = 9,998,433,535.81/145,608.75
  6. Step 6: Final answer
    x = 68,666.43

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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.