Home / 153,697.13-212,101.62-85,714.18

Finding the Fourth Proportional to 153,697.13, 212,101.62 and 85,714.18

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Solution

The fourth proportional to 153,697.13, 212,101.62 and 85,714.18 is: 118,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,697.13 : 212,101.62 = 85,714.18 : x
  2. Step 2: Convert to fraction form
    153,697.13/212,101.62 = 85,714.18/x
  3. Step 3: Cross multiply
    153,697.13x = 212,101.62 × 85,714.18
  4. Step 4: Simplify right side
    153,697.13x = 18,180,116,617.67
  5. Step 5: Solve for x
    x = 18,180,116,617.67/153,697.13
  6. Step 6: Final answer
    x = 118,285.34

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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.