Home / 171,196.16-256,655.06-71,430.67

Finding the Fourth Proportional to 171,196.16, 256,655.06 and 71,430.67

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Solution

The fourth proportional to 171,196.16, 256,655.06 and 71,430.67 is: 107,087.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,196.16 : 256,655.06 = 71,430.67 : x
  2. Step 2: Convert to fraction form
    171,196.16/256,655.06 = 71,430.67/x
  3. Step 3: Cross multiply
    171,196.16x = 256,655.06 × 71,430.67
  4. Step 4: Simplify right side
    171,196.16x = 18,333,041,254.26
  5. Step 5: Solve for x
    x = 18,333,041,254.26/171,196.16
  6. Step 6: Final answer
    x = 107,087.92

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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.