Home / 119,119.06-164,386.88-65,407.53

Finding the Fourth Proportional to 119,119.06, 164,386.88 and 65,407.53

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Solution

The fourth proportional to 119,119.06, 164,386.88 and 65,407.53 is: 90,263.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,119.06 : 164,386.88 = 65,407.53 : x
  2. Step 2: Convert to fraction form
    119,119.06/164,386.88 = 65,407.53/x
  3. Step 3: Cross multiply
    119,119.06x = 164,386.88 × 65,407.53
  4. Step 4: Simplify right side
    119,119.06x = 10,752,140,065.12
  5. Step 5: Solve for x
    x = 10,752,140,065.12/119,119.06
  6. Step 6: Final answer
    x = 90,263.81

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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.