Home / 119,431.25-164,817.35-65,715.79

Finding the Fourth Proportional to 119,431.25, 164,817.35 and 65,715.79

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Solution

The fourth proportional to 119,431.25, 164,817.35 and 65,715.79 is: 90,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,431.25 : 164,817.35 = 65,715.79 : x
  2. Step 2: Convert to fraction form
    119,431.25/164,817.35 = 65,715.79/x
  3. Step 3: Cross multiply
    119,431.25x = 164,817.35 × 65,715.79
  4. Step 4: Simplify right side
    119,431.25x = 10,831,102,360.96
  5. Step 5: Solve for x
    x = 10,831,102,360.96/119,431.25
  6. Step 6: Final answer
    x = 90,689.01

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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.