Home / 109,983.36-151,776-59,681.28

Finding the Fourth Proportional to 109,983.36, 151,776 and 59,681.28

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Solution

The fourth proportional to 109,983.36, 151,776 and 59,681.28 is: 82,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,983.36 : 151,776 = 59,681.28 : x
  2. Step 2: Convert to fraction form
    109,983.36/151,776 = 59,681.28/x
  3. Step 3: Cross multiply
    109,983.36x = 151,776 × 59,681.28
  4. Step 4: Simplify right side
    109,983.36x = 9,058,185,953.28
  5. Step 5: Solve for x
    x = 9,058,185,953.28/109,983.36
  6. Step 6: Final answer
    x = 82,359.60

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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.