Home / 102,075.22-140,814.75-66,276.46

Finding the Fourth Proportional to 102,075.22, 140,814.75 and 66,276.46

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Solution

The fourth proportional to 102,075.22, 140,814.75 and 66,276.46 is: 91,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,075.22 : 140,814.75 = 66,276.46 : x
  2. Step 2: Convert to fraction form
    102,075.22/140,814.75 = 66,276.46/x
  3. Step 3: Cross multiply
    102,075.22x = 140,814.75 × 66,276.46
  4. Step 4: Simplify right side
    102,075.22x = 9,332,703,145.79
  5. Step 5: Solve for x
    x = 9,332,703,145.79/102,075.22
  6. Step 6: Final answer
    x = 91,429.66

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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.