Home / 152,740.36-210,806.58-85,693.96

Finding the Fourth Proportional to 152,740.36, 210,806.58 and 85,693.96

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Solution

The fourth proportional to 152,740.36, 210,806.58 and 85,693.96 is: 118,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,740.36 : 210,806.58 = 85,693.96 : x
  2. Step 2: Convert to fraction form
    152,740.36/210,806.58 = 85,693.96/x
  3. Step 3: Cross multiply
    152,740.36x = 210,806.58 × 85,693.96
  4. Step 4: Simplify right side
    152,740.36x = 18,064,850,634.26
  5. Step 5: Solve for x
    x = 18,064,850,634.26/152,740.36
  6. Step 6: Final answer
    x = 118,271.63

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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.