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Finding the Fourth Proportional to 153,393.96, 229,897.08 and 69,064.32

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Solution

The fourth proportional to 153,393.96, 229,897.08 and 69,064.32 is: 103,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,393.96 : 229,897.08 = 69,064.32 : x
  2. Step 2: Convert to fraction form
    153,393.96/229,897.08 = 69,064.32/x
  3. Step 3: Cross multiply
    153,393.96x = 229,897.08 × 69,064.32
  4. Step 4: Simplify right side
    153,393.96x = 15,877,685,500.19
  5. Step 5: Solve for x
    x = 15,877,685,500.19/153,393.96
  6. Step 6: Final answer
    x = 103,509.20

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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.