Home / 100,250.02-138,345.02-54,929.72

Finding the Fourth Proportional to 100,250.02, 138,345.02 and 54,929.72

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Solution

The fourth proportional to 100,250.02, 138,345.02 and 54,929.72 is: 75,803.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,250.02 : 138,345.02 = 54,929.72 : x
  2. Step 2: Convert to fraction form
    100,250.02/138,345.02 = 54,929.72/x
  3. Step 3: Cross multiply
    100,250.02x = 138,345.02 × 54,929.72
  4. Step 4: Simplify right side
    100,250.02x = 7,599,253,211.99
  5. Step 5: Solve for x
    x = 7,599,253,211.99/100,250.02
  6. Step 6: Final answer
    x = 75,803.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.