Home / 153,351.02-211,637.21-85,380.89

Finding the Fourth Proportional to 153,351.02, 211,637.21 and 85,380.89

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Solution

The fourth proportional to 153,351.02, 211,637.21 and 85,380.89 is: 117,832.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,351.02 : 211,637.21 = 85,380.89 : x
  2. Step 2: Convert to fraction form
    153,351.02/211,637.21 = 85,380.89/x
  3. Step 3: Cross multiply
    153,351.02x = 211,637.21 × 85,380.89
  4. Step 4: Simplify right side
    153,351.02x = 18,069,771,861.83
  5. Step 5: Solve for x
    x = 18,069,771,861.83/153,351.02
  6. Step 6: Final answer
    x = 117,832.74

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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.