Home / 101,909.42-140,639.05-58,887.49

Finding the Fourth Proportional to 101,909.42, 140,639.05 and 58,887.49

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Solution

The fourth proportional to 101,909.42, 140,639.05 and 58,887.49 is: 81,267.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,909.42 : 140,639.05 = 58,887.49 : x
  2. Step 2: Convert to fraction form
    101,909.42/140,639.05 = 58,887.49/x
  3. Step 3: Cross multiply
    101,909.42x = 140,639.05 × 58,887.49
  4. Step 4: Simplify right side
    101,909.42x = 8,281,880,151.67
  5. Step 5: Solve for x
    x = 8,281,880,151.67/101,909.42
  6. Step 6: Final answer
    x = 81,267.07

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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.