Home / 145,639.44-218,544.08-61,394.45

Finding the Fourth Proportional to 145,639.44, 218,544.08 and 61,394.45

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Solution

The fourth proportional to 145,639.44, 218,544.08 and 61,394.45 is: 92,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,639.44 : 218,544.08 = 61,394.45 : x
  2. Step 2: Convert to fraction form
    145,639.44/218,544.08 = 61,394.45/x
  3. Step 3: Cross multiply
    145,639.44x = 218,544.08 × 61,394.45
  4. Step 4: Simplify right side
    145,639.44x = 13,417,392,192.66
  5. Step 5: Solve for x
    x = 13,417,392,192.66/145,639.44
  6. Step 6: Final answer
    x = 92,127.46

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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.