Home / 115,254.78-172,959.93-45,125.34

Finding the Fourth Proportional to 115,254.78, 172,959.93 and 45,125.34

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Solution

The fourth proportional to 115,254.78, 172,959.93 and 45,125.34 is: 67,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,254.78 : 172,959.93 = 45,125.34 : x
  2. Step 2: Convert to fraction form
    115,254.78/172,959.93 = 45,125.34/x
  3. Step 3: Cross multiply
    115,254.78x = 172,959.93 × 45,125.34
  4. Step 4: Simplify right side
    115,254.78x = 7,804,875,647.63
  5. Step 5: Solve for x
    x = 7,804,875,647.63/115,254.78
  6. Step 6: Final answer
    x = 67,718.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.