Home / 121,492.20-182,238.30-38,386.20

Finding the Fourth Proportional to 121,492.20, 182,238.30 and 38,386.20

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Solution

The fourth proportional to 121,492.20, 182,238.30 and 38,386.20 is: 57,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,492.20 : 182,238.30 = 38,386.20 : x
  2. Step 2: Convert to fraction form
    121,492.20/182,238.30 = 38,386.20/x
  3. Step 3: Cross multiply
    121,492.20x = 182,238.30 × 38,386.20
  4. Step 4: Simplify right side
    121,492.20x = 6,995,435,831.46
  5. Step 5: Solve for x
    x = 6,995,435,831.46/121,492.20
  6. Step 6: Final answer
    x = 57,579.30

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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.