Home / 216,913.07-299,343.11-124,981.65

Finding the Fourth Proportional to 216,913.07, 299,343.11 and 124,981.65

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Solution

The fourth proportional to 216,913.07, 299,343.11 and 124,981.65 is: 172,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,913.07 : 299,343.11 = 124,981.65 : x
  2. Step 2: Convert to fraction form
    216,913.07/299,343.11 = 124,981.65/x
  3. Step 3: Cross multiply
    216,913.07x = 299,343.11 × 124,981.65
  4. Step 4: Simplify right side
    216,913.07x = 37,412,395,179.02
  5. Step 5: Solve for x
    x = 37,412,395,179.02/216,913.07
  6. Step 6: Final answer
    x = 172,476.45

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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.