Home / 112,036.70-168,055.05-78,794.30

Finding the Fourth Proportional to 112,036.70, 168,055.05 and 78,794.30

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Solution

The fourth proportional to 112,036.70, 168,055.05 and 78,794.30 is: 118,191.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,036.70 : 168,055.05 = 78,794.30 : x
  2. Step 2: Convert to fraction form
    112,036.70/168,055.05 = 78,794.30/x
  3. Step 3: Cross multiply
    112,036.70x = 168,055.05 × 78,794.30
  4. Step 4: Simplify right side
    112,036.70x = 13,241,780,026.22
  5. Step 5: Solve for x
    x = 13,241,780,026.22/112,036.70
  6. Step 6: Final answer
    x = 118,191.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.