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Finding the Fourth Proportional to 102,058.88, 153,091.20 and 28,186.88

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Solution

The fourth proportional to 102,058.88, 153,091.20 and 28,186.88 is: 42,281.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,058.88 : 153,091.20 = 28,186.88 : x
  2. Step 2: Convert to fraction form
    102,058.88/153,091.20 = 28,186.88/x
  3. Step 3: Cross multiply
    102,058.88x = 153,091.20 × 28,186.88
  4. Step 4: Simplify right side
    102,058.88x = 4,315,163,283.46
  5. Step 5: Solve for x
    x = 4,315,163,283.46/102,058.88
  6. Step 6: Final answer
    x = 42,281.12

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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.