Home / 99,106.32-136,766.81-53,784.31

Finding the Fourth Proportional to 99,106.32, 136,766.81 and 53,784.31

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Solution

The fourth proportional to 99,106.32, 136,766.81 and 53,784.31 is: 74,222.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,106.32 : 136,766.81 = 53,784.31 : x
  2. Step 2: Convert to fraction form
    99,106.32/136,766.81 = 53,784.31/x
  3. Step 3: Cross multiply
    99,106.32x = 136,766.81 × 53,784.31
  4. Step 4: Simplify right side
    99,106.32x = 7,355,908,506.75
  5. Step 5: Solve for x
    x = 7,355,908,506.75/99,106.32
  6. Step 6: Final answer
    x = 74,222.40

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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.