Home / 216,717.72-299,095.26-121,248.60

Finding the Fourth Proportional to 216,717.72, 299,095.26 and 121,248.60

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Solution

The fourth proportional to 216,717.72, 299,095.26 and 121,248.60 is: 167,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,717.72 : 299,095.26 = 121,248.60 : x
  2. Step 2: Convert to fraction form
    216,717.72/299,095.26 = 121,248.60/x
  3. Step 3: Cross multiply
    216,717.72x = 299,095.26 × 121,248.60
  4. Step 4: Simplify right side
    216,717.72x = 36,264,881,541.64
  5. Step 5: Solve for x
    x = 36,264,881,541.64/216,717.72
  6. Step 6: Final answer
    x = 167,336.95

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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.