Home / 121,151.40-181,733.28-36,905

Finding the Fourth Proportional to 121,151.40, 181,733.28 and 36,905

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Solution

The fourth proportional to 121,151.40, 181,733.28 and 36,905 is: 55,359.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,151.40 : 181,733.28 = 36,905 : x
  2. Step 2: Convert to fraction form
    121,151.40/181,733.28 = 36,905/x
  3. Step 3: Cross multiply
    121,151.40x = 181,733.28 × 36,905
  4. Step 4: Simplify right side
    121,151.40x = 6,706,866,698.40
  5. Step 5: Solve for x
    x = 6,706,866,698.40/121,151.40
  6. Step 6: Final answer
    x = 55,359.38

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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.