Home / 103,973.19-143,521.88-80,957.51

Finding the Fourth Proportional to 103,973.19, 143,521.88 and 80,957.51

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Solution

The fourth proportional to 103,973.19, 143,521.88 and 80,957.51 is: 111,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,973.19 : 143,521.88 = 80,957.51 : x
  2. Step 2: Convert to fraction form
    103,973.19/143,521.88 = 80,957.51/x
  3. Step 3: Cross multiply
    103,973.19x = 143,521.88 × 80,957.51
  4. Step 4: Simplify right side
    103,973.19x = 11,619,174,035.32
  5. Step 5: Solve for x
    x = 11,619,174,035.32/103,973.19
  6. Step 6: Final answer
    x = 111,751.64

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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.