Home / 121,140.27-181,772.93-57,947.58

Finding the Fourth Proportional to 121,140.27, 181,772.93 and 57,947.58

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Solution

The fourth proportional to 121,140.27, 181,772.93 and 57,947.58 is: 86,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,140.27 : 181,772.93 = 57,947.58 : x
  2. Step 2: Convert to fraction form
    121,140.27/181,772.93 = 57,947.58/x
  3. Step 3: Cross multiply
    121,140.27x = 181,772.93 × 57,947.58
  4. Step 4: Simplify right side
    121,140.27x = 10,533,301,547.88
  5. Step 5: Solve for x
    x = 10,533,301,547.88/121,140.27
  6. Step 6: Final answer
    x = 86,951.28

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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.