Home / 157,668.02-217,564.05-90,621.62

Finding the Fourth Proportional to 157,668.02, 217,564.05 and 90,621.62

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Solution

The fourth proportional to 157,668.02, 217,564.05 and 90,621.62 is: 125,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,668.02 : 217,564.05 = 90,621.62 : x
  2. Step 2: Convert to fraction form
    157,668.02/217,564.05 = 90,621.62/x
  3. Step 3: Cross multiply
    157,668.02x = 217,564.05 × 90,621.62
  4. Step 4: Simplify right side
    157,668.02x = 19,716,006,664.76
  5. Step 5: Solve for x
    x = 19,716,006,664.76/157,668.02
  6. Step 6: Final answer
    x = 125,047.59

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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.