Home / 153,259.14-211,500.90-85,278.60

Finding the Fourth Proportional to 153,259.14, 211,500.90 and 85,278.60

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Solution

The fourth proportional to 153,259.14, 211,500.90 and 85,278.60 is: 117,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,259.14 : 211,500.90 = 85,278.60 : x
  2. Step 2: Convert to fraction form
    153,259.14/211,500.90 = 85,278.60/x
  3. Step 3: Cross multiply
    153,259.14x = 211,500.90 × 85,278.60
  4. Step 4: Simplify right side
    153,259.14x = 18,036,500,650.74
  5. Step 5: Solve for x
    x = 18,036,500,650.74/153,259.14
  6. Step 6: Final answer
    x = 117,686.30

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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.