Home / 160,431.72-221,298.69-103,051.51

Finding the Fourth Proportional to 160,431.72, 221,298.69 and 103,051.51

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Solution

The fourth proportional to 160,431.72, 221,298.69 and 103,051.51 is: 142,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,431.72 : 221,298.69 = 103,051.51 : x
  2. Step 2: Convert to fraction form
    160,431.72/221,298.69 = 103,051.51/x
  3. Step 3: Cross multiply
    160,431.72x = 221,298.69 × 103,051.51
  4. Step 4: Simplify right side
    160,431.72x = 22,805,164,165.52
  5. Step 5: Solve for x
    x = 22,805,164,165.52/160,431.72
  6. Step 6: Final answer
    x = 142,148.72

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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.