Home / 111,965.59-154,510.18-60,979.22

Finding the Fourth Proportional to 111,965.59, 154,510.18 and 60,979.22

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Solution

The fourth proportional to 111,965.59, 154,510.18 and 60,979.22 is: 84,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,965.59 : 154,510.18 = 60,979.22 : x
  2. Step 2: Convert to fraction form
    111,965.59/154,510.18 = 60,979.22/x
  3. Step 3: Cross multiply
    111,965.59x = 154,510.18 × 60,979.22
  4. Step 4: Simplify right side
    111,965.59x = 9,421,910,038.60
  5. Step 5: Solve for x
    x = 9,421,910,038.60/111,965.59
  6. Step 6: Final answer
    x = 84,150.05

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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.