Home / 155,946.12-215,206.86-86,097.58

Finding the Fourth Proportional to 155,946.12, 215,206.86 and 86,097.58

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Solution

The fourth proportional to 155,946.12, 215,206.86 and 86,097.58 is: 118,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,946.12 : 215,206.86 = 86,097.58 : x
  2. Step 2: Convert to fraction form
    155,946.12/215,206.86 = 86,097.58/x
  3. Step 3: Cross multiply
    155,946.12x = 215,206.86 × 86,097.58
  4. Step 4: Simplify right side
    155,946.12x = 18,528,789,845.40
  5. Step 5: Solve for x
    x = 18,528,789,845.40/155,946.12
  6. Step 6: Final answer
    x = 118,815.33

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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.