Home / 109,115.95-150,569.37-61,368.28

Finding the Fourth Proportional to 109,115.95, 150,569.37 and 61,368.28

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Solution

The fourth proportional to 109,115.95, 150,569.37 and 61,368.28 is: 84,682.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,115.95 : 150,569.37 = 61,368.28 : x
  2. Step 2: Convert to fraction form
    109,115.95/150,569.37 = 61,368.28/x
  3. Step 3: Cross multiply
    109,115.95x = 150,569.37 × 61,368.28
  4. Step 4: Simplify right side
    109,115.95x = 9,240,183,257.58
  5. Step 5: Solve for x
    x = 9,240,183,257.58/109,115.95
  6. Step 6: Final answer
    x = 84,682.24

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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.