Home / 119,045.88-164,274.36-65,322.18

Finding the Fourth Proportional to 119,045.88, 164,274.36 and 65,322.18

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Solution

The fourth proportional to 119,045.88, 164,274.36 and 65,322.18 is: 90,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,045.88 : 164,274.36 = 65,322.18 : x
  2. Step 2: Convert to fraction form
    119,045.88/164,274.36 = 65,322.18/x
  3. Step 3: Cross multiply
    119,045.88x = 164,274.36 × 65,322.18
  4. Step 4: Simplify right side
    119,045.88x = 10,730,759,313.30
  5. Step 5: Solve for x
    x = 10,730,759,313.30/119,045.88
  6. Step 6: Final answer
    x = 90,139.69

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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.