Home / 121,121.04-181,710.64-38,015.04

Finding the Fourth Proportional to 121,121.04, 181,710.64 and 38,015.04

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Solution

The fourth proportional to 121,121.04, 181,710.64 and 38,015.04 is: 57,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,121.04 : 181,710.64 = 38,015.04 : x
  2. Step 2: Convert to fraction form
    121,121.04/181,710.64 = 38,015.04/x
  3. Step 3: Cross multiply
    121,121.04x = 181,710.64 × 38,015.04
  4. Step 4: Simplify right side
    121,121.04x = 6,907,737,248.03
  5. Step 5: Solve for x
    x = 6,907,737,248.03/121,121.04
  6. Step 6: Final answer
    x = 57,031.69

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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.