Home / 130,215.90-194,805.45-112,878.30

Finding the Fourth Proportional to 130,215.90, 194,805.45 and 112,878.30

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Solution

The fourth proportional to 130,215.90, 194,805.45 and 112,878.30 is: 168,868.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,215.90 : 194,805.45 = 112,878.30 : x
  2. Step 2: Convert to fraction form
    130,215.90/194,805.45 = 112,878.30/x
  3. Step 3: Cross multiply
    130,215.90x = 194,805.45 × 112,878.30
  4. Step 4: Simplify right side
    130,215.90x = 21,989,308,026.74
  5. Step 5: Solve for x
    x = 21,989,308,026.74/130,215.90
  6. Step 6: Final answer
    x = 168,868.07

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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.