Home / 153,193.32-211,402.66-86,129.64

Finding the Fourth Proportional to 153,193.32, 211,402.66 and 86,129.64

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Solution

The fourth proportional to 153,193.32, 211,402.66 and 86,129.64 is: 118,856.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,193.32 : 211,402.66 = 86,129.64 : x
  2. Step 2: Convert to fraction form
    153,193.32/211,402.66 = 86,129.64/x
  3. Step 3: Cross multiply
    153,193.32x = 211,402.66 × 86,129.64
  4. Step 4: Simplify right side
    153,193.32x = 18,208,035,000.84
  5. Step 5: Solve for x
    x = 18,208,035,000.84/153,193.32
  6. Step 6: Final answer
    x = 118,856.59

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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.