Home / 215,075.04-296,820.18-129,037.26

Finding the Fourth Proportional to 215,075.04, 296,820.18 and 129,037.26

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Solution

The fourth proportional to 215,075.04, 296,820.18 and 129,037.26 is: 178,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,075.04 : 296,820.18 = 129,037.26 : x
  2. Step 2: Convert to fraction form
    215,075.04/296,820.18 = 129,037.26/x
  3. Step 3: Cross multiply
    215,075.04x = 296,820.18 × 129,037.26
  4. Step 4: Simplify right side
    215,075.04x = 38,300,862,739.91
  5. Step 5: Solve for x
    x = 38,300,862,739.91/215,075.04
  6. Step 6: Final answer
    x = 178,081.39

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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.