Home / 116,705.10-175,068.54-90,439.32

Finding the Fourth Proportional to 116,705.10, 175,068.54 and 90,439.32

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Solution

The fourth proportional to 116,705.10, 175,068.54 and 90,439.32 is: 135,667.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,705.10 : 175,068.54 = 90,439.32 : x
  2. Step 2: Convert to fraction form
    116,705.10/175,068.54 = 90,439.32/x
  3. Step 3: Cross multiply
    116,705.10x = 175,068.54 × 90,439.32
  4. Step 4: Simplify right side
    116,705.10x = 15,833,079,710.99
  5. Step 5: Solve for x
    x = 15,833,079,710.99/116,705.10
  6. Step 6: Final answer
    x = 135,667.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.