Home / 99,120.42-136,785.02-53,798.48

Finding the Fourth Proportional to 99,120.42, 136,785.02 and 53,798.48

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Solution

The fourth proportional to 99,120.42, 136,785.02 and 53,798.48 is: 74,241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,120.42 : 136,785.02 = 53,798.48 : x
  2. Step 2: Convert to fraction form
    99,120.42/136,785.02 = 53,798.48/x
  3. Step 3: Cross multiply
    99,120.42x = 136,785.02 × 53,798.48
  4. Step 4: Simplify right side
    99,120.42x = 7,358,826,162.77
  5. Step 5: Solve for x
    x = 7,358,826,162.77/99,120.42
  6. Step 6: Final answer
    x = 74,241.27

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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.