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Finding the Fourth Proportional to 147,130.30, 220,810.65 and 68,254.30

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Solution

The fourth proportional to 147,130.30, 220,810.65 and 68,254.30 is: 102,434.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,130.30 : 220,810.65 = 68,254.30 : x
  2. Step 2: Convert to fraction form
    147,130.30/220,810.65 = 68,254.30/x
  3. Step 3: Cross multiply
    147,130.30x = 220,810.65 × 68,254.30
  4. Step 4: Simplify right side
    147,130.30x = 15,071,276,348.30
  5. Step 5: Solve for x
    x = 15,071,276,348.30/147,130.30
  6. Step 6: Final answer
    x = 102,434.89

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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.