Home / 160,829.69-221,945.19-89,209.71

Finding the Fourth Proportional to 160,829.69, 221,945.19 and 89,209.71

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Solution

The fourth proportional to 160,829.69, 221,945.19 and 89,209.71 is: 123,109.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,829.69 : 221,945.19 = 89,209.71 : x
  2. Step 2: Convert to fraction form
    160,829.69/221,945.19 = 89,209.71/x
  3. Step 3: Cross multiply
    160,829.69x = 221,945.19 × 89,209.71
  4. Step 4: Simplify right side
    160,829.69x = 19,799,666,035.79
  5. Step 5: Solve for x
    x = 19,799,666,035.79/160,829.69
  6. Step 6: Final answer
    x = 123,109.52

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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.