Home / 90,522.36-136,597.59-87,394.95

Finding the Fourth Proportional to 90,522.36, 136,597.59 and 87,394.95

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Solution

The fourth proportional to 90,522.36, 136,597.59 and 87,394.95 is: 131,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,522.36 : 136,597.59 = 87,394.95 : x
  2. Step 2: Convert to fraction form
    90,522.36/136,597.59 = 87,394.95/x
  3. Step 3: Cross multiply
    90,522.36x = 136,597.59 × 87,394.95
  4. Step 4: Simplify right side
    90,522.36x = 11,937,939,548.17
  5. Step 5: Solve for x
    x = 11,937,939,548.17/90,522.36
  6. Step 6: Final answer
    x = 131,878.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.