Home / 160,862.36-221,990.32-89,242.39

Finding the Fourth Proportional to 160,862.36, 221,990.32 and 89,242.39

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Solution

The fourth proportional to 160,862.36, 221,990.32 and 89,242.39 is: 123,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,862.36 : 221,990.32 = 89,242.39 : x
  2. Step 2: Convert to fraction form
    160,862.36/221,990.32 = 89,242.39/x
  3. Step 3: Cross multiply
    160,862.36x = 221,990.32 × 89,242.39
  4. Step 4: Simplify right side
    160,862.36x = 19,810,947,102.71
  5. Step 5: Solve for x
    x = 19,810,947,102.71/160,862.36
  6. Step 6: Final answer
    x = 123,154.65

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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.