Home / 154,095.48-212,630.85-86,103.90

Finding the Fourth Proportional to 154,095.48, 212,630.85 and 86,103.90

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Solution

The fourth proportional to 154,095.48, 212,630.85 and 86,103.90 is: 118,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,095.48 : 212,630.85 = 86,103.90 : x
  2. Step 2: Convert to fraction form
    154,095.48/212,630.85 = 86,103.90/x
  3. Step 3: Cross multiply
    154,095.48x = 212,630.85 × 86,103.90
  4. Step 4: Simplify right side
    154,095.48x = 18,308,345,445.32
  5. Step 5: Solve for x
    x = 18,308,345,445.32/154,095.48
  6. Step 6: Final answer
    x = 118,811.70

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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.