Home / 160,802.80-221,915.27-89,178.55

Finding the Fourth Proportional to 160,802.80, 221,915.27 and 89,178.55

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Solution

The fourth proportional to 160,802.80, 221,915.27 and 89,178.55 is: 123,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,802.80 : 221,915.27 = 89,178.55 : x
  2. Step 2: Convert to fraction form
    160,802.80/221,915.27 = 89,178.55/x
  3. Step 3: Cross multiply
    160,802.80x = 221,915.27 × 89,178.55
  4. Step 4: Simplify right side
    160,802.80x = 19,790,081,669.62
  5. Step 5: Solve for x
    x = 19,790,081,669.62/160,802.80
  6. Step 6: Final answer
    x = 123,070.51

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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.