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Finding the Fourth Proportional to 102,391.59, 153,587.34 and 102,243.77

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Solution

The fourth proportional to 102,391.59, 153,587.34 and 102,243.77 is: 153,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,391.59 : 153,587.34 = 102,243.77 : x
  2. Step 2: Convert to fraction form
    102,391.59/153,587.34 = 102,243.77/x
  3. Step 3: Cross multiply
    102,391.59x = 153,587.34 × 102,243.77
  4. Step 4: Simplify right side
    102,391.59x = 15,703,348,473.89
  5. Step 5: Solve for x
    x = 15,703,348,473.89/102,391.59
  6. Step 6: Final answer
    x = 153,365.60

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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.