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Finding the Fourth Proportional to 100,807.74, 139,092.36 and 58,341.67

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Solution

The fourth proportional to 100,807.74, 139,092.36 and 58,341.67 is: 80,498.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,807.74 : 139,092.36 = 58,341.67 : x
  2. Step 2: Convert to fraction form
    100,807.74/139,092.36 = 58,341.67/x
  3. Step 3: Cross multiply
    100,807.74x = 139,092.36 × 58,341.67
  4. Step 4: Simplify right side
    100,807.74x = 8,114,880,492.39
  5. Step 5: Solve for x
    x = 8,114,880,492.39/100,807.74
  6. Step 6: Final answer
    x = 80,498.59

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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.