Home / 155,903.16-215,141.13-98,573.34

Finding the Fourth Proportional to 155,903.16, 215,141.13 and 98,573.34

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Solution

The fourth proportional to 155,903.16, 215,141.13 and 98,573.34 is: 136,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,903.16 : 215,141.13 = 98,573.34 : x
  2. Step 2: Convert to fraction form
    155,903.16/215,141.13 = 98,573.34/x
  3. Step 3: Cross multiply
    155,903.16x = 215,141.13 × 98,573.34
  4. Step 4: Simplify right side
    155,903.16x = 21,207,179,755.47
  5. Step 5: Solve for x
    x = 21,207,179,755.47/155,903.16
  6. Step 6: Final answer
    x = 136,027.90

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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.