Home / 130,110.84-194,854.32-66,764.16

Finding the Fourth Proportional to 130,110.84, 194,854.32 and 66,764.16

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Solution

The fourth proportional to 130,110.84, 194,854.32 and 66,764.16 is: 99,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,110.84 : 194,854.32 = 66,764.16 : x
  2. Step 2: Convert to fraction form
    130,110.84/194,854.32 = 66,764.16/x
  3. Step 3: Cross multiply
    130,110.84x = 194,854.32 × 66,764.16
  4. Step 4: Simplify right side
    130,110.84x = 13,009,284,997.17
  5. Step 5: Solve for x
    x = 13,009,284,997.17/130,110.84
  6. Step 6: Final answer
    x = 99,986.17

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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.