Home / 155,888.32-215,125.89-84,268.35

Finding the Fourth Proportional to 155,888.32, 215,125.89 and 84,268.35

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Solution

The fourth proportional to 155,888.32, 215,125.89 and 84,268.35 is: 116,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,888.32 : 215,125.89 = 84,268.35 : x
  2. Step 2: Convert to fraction form
    155,888.32/215,125.89 = 84,268.35/x
  3. Step 3: Cross multiply
    155,888.32x = 215,125.89 × 84,268.35
  4. Step 4: Simplify right side
    155,888.32x = 18,128,302,295.61
  5. Step 5: Solve for x
    x = 18,128,302,295.61/155,888.32
  6. Step 6: Final answer
    x = 116,290.32

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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.