Home / 112,904.39-155,810.19-61,914.08

Finding the Fourth Proportional to 112,904.39, 155,810.19 and 61,914.08

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Solution

The fourth proportional to 112,904.39, 155,810.19 and 61,914.08 is: 85,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,904.39 : 155,810.19 = 61,914.08 : x
  2. Step 2: Convert to fraction form
    112,904.39/155,810.19 = 61,914.08/x
  3. Step 3: Cross multiply
    112,904.39x = 155,810.19 × 61,914.08
  4. Step 4: Simplify right side
    112,904.39x = 9,646,843,789.42
  5. Step 5: Solve for x
    x = 9,646,843,789.42/112,904.39
  6. Step 6: Final answer
    x = 85,442.60

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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.