Home / 153,428.20-230,142.30-48,279.40

Finding the Fourth Proportional to 153,428.20, 230,142.30 and 48,279.40

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Solution

The fourth proportional to 153,428.20, 230,142.30 and 48,279.40 is: 72,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,428.20 : 230,142.30 = 48,279.40 : x
  2. Step 2: Convert to fraction form
    153,428.20/230,142.30 = 48,279.40/x
  3. Step 3: Cross multiply
    153,428.20x = 230,142.30 × 48,279.40
  4. Step 4: Simplify right side
    153,428.20x = 11,111,132,158.62
  5. Step 5: Solve for x
    x = 11,111,132,158.62/153,428.20
  6. Step 6: Final answer
    x = 72,419.10

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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.