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Finding the Fourth Proportional to 147,597.30, 221,428.35 and 72,753.30

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Solution

The fourth proportional to 147,597.30, 221,428.35 and 72,753.30 is: 109,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,597.30 : 221,428.35 = 72,753.30 : x
  2. Step 2: Convert to fraction form
    147,597.30/221,428.35 = 72,753.30/x
  3. Step 3: Cross multiply
    147,597.30x = 221,428.35 × 72,753.30
  4. Step 4: Simplify right side
    147,597.30x = 16,109,643,176.06
  5. Step 5: Solve for x
    x = 16,109,643,176.06/147,597.30
  6. Step 6: Final answer
    x = 109,145.92

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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.