Home / 158,851.86-219,216.27-90,869.57

Finding the Fourth Proportional to 158,851.86, 219,216.27 and 90,869.57

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Solution

The fourth proportional to 158,851.86, 219,216.27 and 90,869.57 is: 125,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,851.86 : 219,216.27 = 90,869.57 : x
  2. Step 2: Convert to fraction form
    158,851.86/219,216.27 = 90,869.57/x
  3. Step 3: Cross multiply
    158,851.86x = 219,216.27 × 90,869.57
  4. Step 4: Simplify right side
    158,851.86x = 19,920,088,191.90
  5. Step 5: Solve for x
    x = 19,920,088,191.90/158,851.86
  6. Step 6: Final answer
    x = 125,400.41

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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.