Home / 127,588.68-176,075.10-71,003.70

Finding the Fourth Proportional to 127,588.68, 176,075.10 and 71,003.70

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Solution

The fourth proportional to 127,588.68, 176,075.10 and 71,003.70 is: 97,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,588.68 : 176,075.10 = 71,003.70 : x
  2. Step 2: Convert to fraction form
    127,588.68/176,075.10 = 71,003.70/x
  3. Step 3: Cross multiply
    127,588.68x = 176,075.10 × 71,003.70
  4. Step 4: Simplify right side
    127,588.68x = 12,501,983,577.87
  5. Step 5: Solve for x
    x = 12,501,983,577.87/127,588.68
  6. Step 6: Final answer
    x = 97,986.62

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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.