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Finding the Fourth Proportional to 153,230, 229,922.76 and 70,144.88

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Solution

The fourth proportional to 153,230, 229,922.76 and 70,144.88 is: 105,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,230 : 229,922.76 = 70,144.88 : x
  2. Step 2: Convert to fraction form
    153,230/229,922.76 = 70,144.88/x
  3. Step 3: Cross multiply
    153,230x = 229,922.76 × 70,144.88
  4. Step 4: Simplify right side
    153,230x = 16,127,904,409.47
  5. Step 5: Solve for x
    x = 16,127,904,409.47/153,230
  6. Step 6: Final answer
    x = 105,252.92

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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.