Home / 145,424.09-218,252.79-75,323.45

Finding the Fourth Proportional to 145,424.09, 218,252.79 and 75,323.45

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Solution

The fourth proportional to 145,424.09, 218,252.79 and 75,323.45 is: 113,045.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,424.09 : 218,252.79 = 75,323.45 : x
  2. Step 2: Convert to fraction form
    145,424.09/218,252.79 = 75,323.45/x
  3. Step 3: Cross multiply
    145,424.09x = 218,252.79 × 75,323.45
  4. Step 4: Simplify right side
    145,424.09x = 16,439,552,023.66
  5. Step 5: Solve for x
    x = 16,439,552,023.66/145,424.09
  6. Step 6: Final answer
    x = 113,045.59

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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.