Home / 109,363.20-150,931.92-64,038.36

Finding the Fourth Proportional to 109,363.20, 150,931.92 and 64,038.36

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Solution

The fourth proportional to 109,363.20, 150,931.92 and 64,038.36 is: 88,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,363.20 : 150,931.92 = 64,038.36 : x
  2. Step 2: Convert to fraction form
    109,363.20/150,931.92 = 64,038.36/x
  3. Step 3: Cross multiply
    109,363.20x = 150,931.92 × 64,038.36
  4. Step 4: Simplify right side
    109,363.20x = 9,665,432,628.45
  5. Step 5: Solve for x
    x = 9,665,432,628.45/109,363.20
  6. Step 6: Final answer
    x = 88,379.20

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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.