Home / 119,117.18-164,386.06-65,401.70

Finding the Fourth Proportional to 119,117.18, 164,386.06 and 65,401.70

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Solution

The fourth proportional to 119,117.18, 164,386.06 and 65,401.70 is: 90,256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,117.18 : 164,386.06 = 65,401.70 : x
  2. Step 2: Convert to fraction form
    119,117.18/164,386.06 = 65,401.70/x
  3. Step 3: Cross multiply
    119,117.18x = 164,386.06 × 65,401.70
  4. Step 4: Simplify right side
    119,117.18x = 10,751,126,794.87
  5. Step 5: Solve for x
    x = 10,751,126,794.87/119,117.18
  6. Step 6: Final answer
    x = 90,256.73

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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.