Home / 158,878.32-219,265.02-87,272.16

Finding the Fourth Proportional to 158,878.32, 219,265.02 and 87,272.16

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Solution

The fourth proportional to 158,878.32, 219,265.02 and 87,272.16 is: 120,442.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,878.32 : 219,265.02 = 87,272.16 : x
  2. Step 2: Convert to fraction form
    158,878.32/219,265.02 = 87,272.16/x
  3. Step 3: Cross multiply
    158,878.32x = 219,265.02 × 87,272.16
  4. Step 4: Simplify right side
    158,878.32x = 19,135,731,907.84
  5. Step 5: Solve for x
    x = 19,135,731,907.84/158,878.32
  6. Step 6: Final answer
    x = 120,442.69

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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.