Home / 99,112.15-136,774.83-53,790.12

Finding the Fourth Proportional to 99,112.15, 136,774.83 and 53,790.12

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Solution

The fourth proportional to 99,112.15, 136,774.83 and 53,790.12 is: 74,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.15 : 136,774.83 = 53,790.12 : x
  2. Step 2: Convert to fraction form
    99,112.15/136,774.83 = 53,790.12/x
  3. Step 3: Cross multiply
    99,112.15x = 136,774.83 × 53,790.12
  4. Step 4: Simplify right side
    99,112.15x = 7,357,133,834.81
  5. Step 5: Solve for x
    x = 7,357,133,834.81/99,112.15
  6. Step 6: Final answer
    x = 74,230.40

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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.