Home / 216,933.47-299,365.90-121,440.95

Finding the Fourth Proportional to 216,933.47, 299,365.90 and 121,440.95

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Solution

The fourth proportional to 216,933.47, 299,365.90 and 121,440.95 is: 167,587.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,933.47 : 299,365.90 = 121,440.95 : x
  2. Step 2: Convert to fraction form
    216,933.47/299,365.90 = 121,440.95/x
  3. Step 3: Cross multiply
    216,933.47x = 299,365.90 × 121,440.95
  4. Step 4: Simplify right side
    216,933.47x = 36,355,277,493.17
  5. Step 5: Solve for x
    x = 36,355,277,493.17/216,933.47
  6. Step 6: Final answer
    x = 167,587.23

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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.