Home / 153,994.32-212,497.16-86,005.89

Finding the Fourth Proportional to 153,994.32, 212,497.16 and 86,005.89

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Solution

The fourth proportional to 153,994.32, 212,497.16 and 86,005.89 is: 118,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,994.32 : 212,497.16 = 86,005.89 : x
  2. Step 2: Convert to fraction form
    153,994.32/212,497.16 = 86,005.89/x
  3. Step 3: Cross multiply
    153,994.32x = 212,497.16 × 86,005.89
  4. Step 4: Simplify right side
    153,994.32x = 18,276,006,938.24
  5. Step 5: Solve for x
    x = 18,276,006,938.24/153,994.32
  6. Step 6: Final answer
    x = 118,679.75

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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.