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Finding the Fourth Proportional to 155,689.90, 214,892.14 and 101,377.63

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Solution

The fourth proportional to 155,689.90, 214,892.14 and 101,377.63 is: 139,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,689.90 : 214,892.14 = 101,377.63 : x
  2. Step 2: Convert to fraction form
    155,689.90/214,892.14 = 101,377.63/x
  3. Step 3: Cross multiply
    155,689.90x = 214,892.14 × 101,377.63
  4. Step 4: Simplify right side
    155,689.90x = 21,785,256,215.18
  5. Step 5: Solve for x
    x = 21,785,256,215.18/155,689.90
  6. Step 6: Final answer
    x = 139,927.23

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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.