Home / 160,285.72-221,172.63-91,384.07

Finding the Fourth Proportional to 160,285.72, 221,172.63 and 91,384.07

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Solution

The fourth proportional to 160,285.72, 221,172.63 and 91,384.07 is: 126,097.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,285.72 : 221,172.63 = 91,384.07 : x
  2. Step 2: Convert to fraction form
    160,285.72/221,172.63 = 91,384.07/x
  3. Step 3: Cross multiply
    160,285.72x = 221,172.63 × 91,384.07
  4. Step 4: Simplify right side
    160,285.72x = 20,211,654,897.55
  5. Step 5: Solve for x
    x = 20,211,654,897.55/160,285.72
  6. Step 6: Final answer
    x = 126,097.66

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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.