Home / 112,961.37-156,048.89-90,270.63

Finding the Fourth Proportional to 112,961.37, 156,048.89 and 90,270.63

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Solution

The fourth proportional to 112,961.37, 156,048.89 and 90,270.63 is: 124,703.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,961.37 : 156,048.89 = 90,270.63 : x
  2. Step 2: Convert to fraction form
    112,961.37/156,048.89 = 90,270.63/x
  3. Step 3: Cross multiply
    112,961.37x = 156,048.89 × 90,270.63
  4. Step 4: Simplify right side
    112,961.37x = 14,086,631,159.75
  5. Step 5: Solve for x
    x = 14,086,631,159.75/112,961.37
  6. Step 6: Final answer
    x = 124,703.08

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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.