Home / 88,364.16-121,987.72-68,175.68

Finding the Fourth Proportional to 88,364.16, 121,987.72 and 68,175.68

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Solution

The fourth proportional to 88,364.16, 121,987.72 and 68,175.68 is: 94,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,364.16 : 121,987.72 = 68,175.68 : x
  2. Step 2: Convert to fraction form
    88,364.16/121,987.72 = 68,175.68/x
  3. Step 3: Cross multiply
    88,364.16x = 121,987.72 × 68,175.68
  4. Step 4: Simplify right side
    88,364.16x = 8,316,595,762.65
  5. Step 5: Solve for x
    x = 8,316,595,762.65/88,364.16
  6. Step 6: Final answer
    x = 94,117.30

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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.