Home / 158,386.71-218,518.88-120,106.38

Finding the Fourth Proportional to 158,386.71, 218,518.88 and 120,106.38

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Solution

The fourth proportional to 158,386.71, 218,518.88 and 120,106.38 is: 165,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,386.71 : 218,518.88 = 120,106.38 : x
  2. Step 2: Convert to fraction form
    158,386.71/218,518.88 = 120,106.38/x
  3. Step 3: Cross multiply
    158,386.71x = 218,518.88 × 120,106.38
  4. Step 4: Simplify right side
    158,386.71x = 26,245,510,668.88
  5. Step 5: Solve for x
    x = 26,245,510,668.88/158,386.71
  6. Step 6: Final answer
    x = 165,705.26

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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.