Home / 154,675.30-231,985.14-70,415.32

Finding the Fourth Proportional to 154,675.30, 231,985.14 and 70,415.32

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Solution

The fourth proportional to 154,675.30, 231,985.14 and 70,415.32 is: 105,610.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,675.30 : 231,985.14 = 70,415.32 : x
  2. Step 2: Convert to fraction form
    154,675.30/231,985.14 = 70,415.32/x
  3. Step 3: Cross multiply
    154,675.30x = 231,985.14 × 70,415.32
  4. Step 4: Simplify right side
    154,675.30x = 16,335,307,868.34
  5. Step 5: Solve for x
    x = 16,335,307,868.34/154,675.30
  6. Step 6: Final answer
    x = 105,610.32

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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.