Home / 109,721.25-151,421.81-61,973.37

Finding the Fourth Proportional to 109,721.25, 151,421.81 and 61,973.37

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Solution

The fourth proportional to 109,721.25, 151,421.81 and 61,973.37 is: 85,526.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,721.25 : 151,421.81 = 61,973.37 : x
  2. Step 2: Convert to fraction form
    109,721.25/151,421.81 = 61,973.37/x
  3. Step 3: Cross multiply
    109,721.25x = 151,421.81 × 61,973.37
  4. Step 4: Simplify right side
    109,721.25x = 9,384,119,547.33
  5. Step 5: Solve for x
    x = 9,384,119,547.33/109,721.25
  6. Step 6: Final answer
    x = 85,526.91

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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.