Home / 112,275.36-154,939.68-61,974

Finding the Fourth Proportional to 112,275.36, 154,939.68 and 61,974

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Solution

The fourth proportional to 112,275.36, 154,939.68 and 61,974 is: 85,523.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,275.36 : 154,939.68 = 61,974 : x
  2. Step 2: Convert to fraction form
    112,275.36/154,939.68 = 61,974/x
  3. Step 3: Cross multiply
    112,275.36x = 154,939.68 × 61,974
  4. Step 4: Simplify right side
    112,275.36x = 9,602,231,728.32
  5. Step 5: Solve for x
    x = 9,602,231,728.32/112,275.36
  6. Step 6: Final answer
    x = 85,523.95

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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.