Home / 216,966.98-299,445.87-121,479.83

Finding the Fourth Proportional to 216,966.98, 299,445.87 and 121,479.83

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Solution

The fourth proportional to 216,966.98, 299,445.87 and 121,479.83 is: 167,659.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,966.98 : 299,445.87 = 121,479.83 : x
  2. Step 2: Convert to fraction form
    216,966.98/299,445.87 = 121,479.83/x
  3. Step 3: Cross multiply
    216,966.98x = 299,445.87 × 121,479.83
  4. Step 4: Simplify right side
    216,966.98x = 36,376,633,381.80
  5. Step 5: Solve for x
    x = 36,376,633,381.80/216,966.98
  6. Step 6: Final answer
    x = 167,659.77

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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.