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Finding the Fourth Proportional to 130,254.68, 179,750.76 and 72,894.08

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Solution

The fourth proportional to 130,254.68, 179,750.76 and 72,894.08 is: 100,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,254.68 : 179,750.76 = 72,894.08 : x
  2. Step 2: Convert to fraction form
    130,254.68/179,750.76 = 72,894.08/x
  3. Step 3: Cross multiply
    130,254.68x = 179,750.76 × 72,894.08
  4. Step 4: Simplify right side
    130,254.68x = 13,102,766,279.50
  5. Step 5: Solve for x
    x = 13,102,766,279.50/130,254.68
  6. Step 6: Final answer
    x = 100,593.44

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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.