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Finding the Fourth Proportional to 103,101.66, 142,275.99 and 58,389.66

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Solution

The fourth proportional to 103,101.66, 142,275.99 and 58,389.66 is: 80,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,101.66 : 142,275.99 = 58,389.66 : x
  2. Step 2: Convert to fraction form
    103,101.66/142,275.99 = 58,389.66/x
  3. Step 3: Cross multiply
    103,101.66x = 142,275.99 × 58,389.66
  4. Step 4: Simplify right side
    103,101.66x = 8,307,446,682.26
  5. Step 5: Solve for x
    x = 8,307,446,682.26/103,101.66
  6. Step 6: Final answer
    x = 80,575.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.