Home / 163,401.56-245,312.24-125,985.40

Finding the Fourth Proportional to 163,401.56, 245,312.24 and 125,985.40

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Solution

The fourth proportional to 163,401.56, 245,312.24 and 125,985.40 is: 189,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,401.56 : 245,312.24 = 125,985.40 : x
  2. Step 2: Convert to fraction form
    163,401.56/245,312.24 = 125,985.40/x
  3. Step 3: Cross multiply
    163,401.56x = 245,312.24 × 125,985.40
  4. Step 4: Simplify right side
    163,401.56x = 30,905,760,681.30
  5. Step 5: Solve for x
    x = 30,905,760,681.30/163,401.56
  6. Step 6: Final answer
    x = 189,139.94

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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.