Home / 345,875.51-518,829.17-105,972.23

Finding the Fourth Proportional to 345,875.51, 518,829.17 and 105,972.23

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Solution

The fourth proportional to 345,875.51, 518,829.17 and 105,972.23 is: 158,963.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,875.51 : 518,829.17 = 105,972.23 : x
  2. Step 2: Convert to fraction form
    345,875.51/518,829.17 = 105,972.23/x
  3. Step 3: Cross multiply
    345,875.51x = 518,829.17 × 105,972.23
  4. Step 4: Simplify right side
    345,875.51x = 54,981,484,133.95
  5. Step 5: Solve for x
    x = 54,981,484,133.95/345,875.51
  6. Step 6: Final answer
    x = 158,963.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.