Home / 121,492.02-182,251-51,378.42

Finding the Fourth Proportional to 121,492.02, 182,251 and 51,378.42

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Solution

The fourth proportional to 121,492.02, 182,251 and 51,378.42 is: 77,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,492.02 : 182,251 = 51,378.42 : x
  2. Step 2: Convert to fraction form
    121,492.02/182,251 = 51,378.42/x
  3. Step 3: Cross multiply
    121,492.02x = 182,251 × 51,378.42
  4. Step 4: Simplify right side
    121,492.02x = 9,363,768,423.42
  5. Step 5: Solve for x
    x = 9,363,768,423.42/121,492.02
  6. Step 6: Final answer
    x = 77,073.11

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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.