Home / 154,005.42-212,525.21-86,023.34

Finding the Fourth Proportional to 154,005.42, 212,525.21 and 86,023.34

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Solution

The fourth proportional to 154,005.42, 212,525.21 and 86,023.34 is: 118,710.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,005.42 : 212,525.21 = 86,023.34 : x
  2. Step 2: Convert to fraction form
    154,005.42/212,525.21 = 86,023.34/x
  3. Step 3: Cross multiply
    154,005.42x = 212,525.21 × 86,023.34
  4. Step 4: Simplify right side
    154,005.42x = 18,282,126,905.66
  5. Step 5: Solve for x
    x = 18,282,126,905.66/154,005.42
  6. Step 6: Final answer
    x = 118,710.93

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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.