Home / 121,033.32-181,574.64-42,153.72

Finding the Fourth Proportional to 121,033.32, 181,574.64 and 42,153.72

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Solution

The fourth proportional to 121,033.32, 181,574.64 and 42,153.72 is: 63,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,033.32 : 181,574.64 = 42,153.72 : x
  2. Step 2: Convert to fraction form
    121,033.32/181,574.64 = 42,153.72/x
  3. Step 3: Cross multiply
    121,033.32x = 181,574.64 × 42,153.72
  4. Step 4: Simplify right side
    121,033.32x = 7,654,046,533.66
  5. Step 5: Solve for x
    x = 7,654,046,533.66/121,033.32
  6. Step 6: Final answer
    x = 63,239.17

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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.