Home / 155,217.34-214,162.56-90,649.96

Finding the Fourth Proportional to 155,217.34, 214,162.56 and 90,649.96

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Solution

The fourth proportional to 155,217.34, 214,162.56 and 90,649.96 is: 125,075.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,217.34 : 214,162.56 = 90,649.96 : x
  2. Step 2: Convert to fraction form
    155,217.34/214,162.56 = 90,649.96/x
  3. Step 3: Cross multiply
    155,217.34x = 214,162.56 × 90,649.96
  4. Step 4: Simplify right side
    155,217.34x = 19,413,827,497.50
  5. Step 5: Solve for x
    x = 19,413,827,497.50/155,217.34
  6. Step 6: Final answer
    x = 125,075.12

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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.