Home / 112,670.90-155,483.52-61,682.42

Finding the Fourth Proportional to 112,670.90, 155,483.52 and 61,682.42

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Solution

The fourth proportional to 112,670.90, 155,483.52 and 61,682.42 is: 85,120.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,670.90 : 155,483.52 = 61,682.42 : x
  2. Step 2: Convert to fraction form
    112,670.90/155,483.52 = 61,682.42/x
  3. Step 3: Cross multiply
    112,670.90x = 155,483.52 × 61,682.42
  4. Step 4: Simplify right side
    112,670.90x = 9,590,599,783.72
  5. Step 5: Solve for x
    x = 9,590,599,783.72/112,670.90
  6. Step 6: Final answer
    x = 85,120.47

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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.