Home / 121,154.47-181,741.02-36,921.76

Finding the Fourth Proportional to 121,154.47, 181,741.02 and 36,921.76

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Solution

The fourth proportional to 121,154.47, 181,741.02 and 36,921.76 is: 55,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,154.47 : 181,741.02 = 36,921.76 : x
  2. Step 2: Convert to fraction form
    121,154.47/181,741.02 = 36,921.76/x
  3. Step 3: Cross multiply
    121,154.47x = 181,741.02 × 36,921.76
  4. Step 4: Simplify right side
    121,154.47x = 6,710,197,729.79
  5. Step 5: Solve for x
    x = 6,710,197,729.79/121,154.47
  6. Step 6: Final answer
    x = 55,385.47

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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.