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Finding the Fourth Proportional to 139,024.36, 191,826.90 and 88,001.20

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Solution

The fourth proportional to 139,024.36, 191,826.90 and 88,001.20 is: 121,424.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,024.36 : 191,826.90 = 88,001.20 : x
  2. Step 2: Convert to fraction form
    139,024.36/191,826.90 = 88,001.20/x
  3. Step 3: Cross multiply
    139,024.36x = 191,826.90 × 88,001.20
  4. Step 4: Simplify right side
    139,024.36x = 16,880,997,392.28
  5. Step 5: Solve for x
    x = 16,880,997,392.28/139,024.36
  6. Step 6: Final answer
    x = 121,424.74

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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.