Home / 155,946.10-215,206.91-86,097.65

Finding the Fourth Proportional to 155,946.10, 215,206.91 and 86,097.65

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Solution

The fourth proportional to 155,946.10, 215,206.91 and 86,097.65 is: 118,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,946.10 : 215,206.91 = 86,097.65 : x
  2. Step 2: Convert to fraction form
    155,946.10/215,206.91 = 86,097.65/x
  3. Step 3: Cross multiply
    155,946.10x = 215,206.91 × 86,097.65
  4. Step 4: Simplify right side
    155,946.10x = 18,528,809,524.12
  5. Step 5: Solve for x
    x = 18,528,809,524.12/155,946.10
  6. Step 6: Final answer
    x = 118,815.47

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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.