Home / 121,036.96-181,560.32-42,159.16

Finding the Fourth Proportional to 121,036.96, 181,560.32 and 42,159.16

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Solution

The fourth proportional to 121,036.96, 181,560.32 and 42,159.16 is: 63,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,036.96 : 181,560.32 = 42,159.16 : x
  2. Step 2: Convert to fraction form
    121,036.96/181,560.32 = 42,159.16/x
  3. Step 3: Cross multiply
    121,036.96x = 181,560.32 × 42,159.16
  4. Step 4: Simplify right side
    121,036.96x = 7,654,430,580.53
  5. Step 5: Solve for x
    x = 7,654,430,580.53/121,036.96
  6. Step 6: Final answer
    x = 63,240.44

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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.