Home / 158,700.95-219,007.27-90,719.39

Finding the Fourth Proportional to 158,700.95, 219,007.27 and 90,719.39

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Solution

The fourth proportional to 158,700.95, 219,007.27 and 90,719.39 is: 125,192.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,700.95 : 219,007.27 = 90,719.39 : x
  2. Step 2: Convert to fraction form
    158,700.95/219,007.27 = 90,719.39/x
  3. Step 3: Cross multiply
    158,700.95x = 219,007.27 × 90,719.39
  4. Step 4: Simplify right side
    158,700.95x = 19,868,206,345.73
  5. Step 5: Solve for x
    x = 19,868,206,345.73/158,700.95
  6. Step 6: Final answer
    x = 125,192.74

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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.