Home / 112,121.34-154,728.65-61,133.64

Finding the Fourth Proportional to 112,121.34, 154,728.65 and 61,133.64

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Solution

The fourth proportional to 112,121.34, 154,728.65 and 61,133.64 is: 84,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.34 : 154,728.65 = 61,133.64 : x
  2. Step 2: Convert to fraction form
    112,121.34/154,728.65 = 61,133.64/x
  3. Step 3: Cross multiply
    112,121.34x = 154,728.65 × 61,133.64
  4. Step 4: Simplify right side
    112,121.34x = 9,459,125,739.62
  5. Step 5: Solve for x
    x = 9,459,125,739.62/112,121.34
  6. Step 6: Final answer
    x = 84,365.08

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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.