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Finding the Fourth Proportional to 153,045.40, 229,568.10 and 69,939.40

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Solution

The fourth proportional to 153,045.40, 229,568.10 and 69,939.40 is: 104,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,045.40 : 229,568.10 = 69,939.40 : x
  2. Step 2: Convert to fraction form
    153,045.40/229,568.10 = 69,939.40/x
  3. Step 3: Cross multiply
    153,045.40x = 229,568.10 × 69,939.40
  4. Step 4: Simplify right side
    153,045.40x = 16,055,855,173.14
  5. Step 5: Solve for x
    x = 16,055,855,173.14/153,045.40
  6. Step 6: Final answer
    x = 104,909.10

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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.