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Finding the Fourth Proportional to 121,278.20, 181,884.90 and 37,038.20

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Solution

The fourth proportional to 121,278.20, 181,884.90 and 37,038.20 is: 55,547.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,278.20 : 181,884.90 = 37,038.20 : x
  2. Step 2: Convert to fraction form
    121,278.20/181,884.90 = 37,038.20/x
  3. Step 3: Cross multiply
    121,278.20x = 181,884.90 × 37,038.20
  4. Step 4: Simplify right side
    121,278.20x = 6,736,689,303.18
  5. Step 5: Solve for x
    x = 6,736,689,303.18/121,278.20
  6. Step 6: Final answer
    x = 55,547.41

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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.