Home / 216,723.52-299,062.15-121,211.76

Finding the Fourth Proportional to 216,723.52, 299,062.15 and 121,211.76

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Solution

The fourth proportional to 216,723.52, 299,062.15 and 121,211.76 is: 167,263.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,723.52 : 299,062.15 = 121,211.76 : x
  2. Step 2: Convert to fraction form
    216,723.52/299,062.15 = 121,211.76/x
  3. Step 3: Cross multiply
    216,723.52x = 299,062.15 × 121,211.76
  4. Step 4: Simplify right side
    216,723.52x = 36,249,849,550.88
  5. Step 5: Solve for x
    x = 36,249,849,550.88/216,723.52
  6. Step 6: Final answer
    x = 167,263.11

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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.