Home / 145,219.69-217,777.98-42,608.38

Finding the Fourth Proportional to 145,219.69, 217,777.98 and 42,608.38

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Solution

The fourth proportional to 145,219.69, 217,777.98 and 42,608.38 is: 63,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,219.69 : 217,777.98 = 42,608.38 : x
  2. Step 2: Convert to fraction form
    145,219.69/217,777.98 = 42,608.38/x
  3. Step 3: Cross multiply
    145,219.69x = 217,777.98 × 42,608.38
  4. Step 4: Simplify right side
    145,219.69x = 9,279,166,542.81
  5. Step 5: Solve for x
    x = 9,279,166,542.81/145,219.69
  6. Step 6: Final answer
    x = 63,897.44

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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.