Home / 109,159.20-150,628.97-61,411.52

Finding the Fourth Proportional to 109,159.20, 150,628.97 and 61,411.52

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Solution

The fourth proportional to 109,159.20, 150,628.97 and 61,411.52 is: 84,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,159.20 : 150,628.97 = 61,411.52 : x
  2. Step 2: Convert to fraction form
    109,159.20/150,628.97 = 61,411.52/x
  3. Step 3: Cross multiply
    109,159.20x = 150,628.97 × 61,411.52
  4. Step 4: Simplify right side
    109,159.20x = 9,250,354,533.84
  5. Step 5: Solve for x
    x = 9,250,354,533.84/109,159.20
  6. Step 6: Final answer
    x = 84,741.87

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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.