Home / 156,143.43-215,424.63-101,670.66

Finding the Fourth Proportional to 156,143.43, 215,424.63 and 101,670.66

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Solution

The fourth proportional to 156,143.43, 215,424.63 and 101,670.66 is: 140,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,143.43 : 215,424.63 = 101,670.66 : x
  2. Step 2: Convert to fraction form
    156,143.43/215,424.63 = 101,670.66/x
  3. Step 3: Cross multiply
    156,143.43x = 215,424.63 × 101,670.66
  4. Step 4: Simplify right side
    156,143.43x = 21,902,364,312.36
  5. Step 5: Solve for x
    x = 21,902,364,312.36/156,143.43
  6. Step 6: Final answer
    x = 140,270.80

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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.