Home / 163,438.56-245,151.18-45,106.86

Finding the Fourth Proportional to 163,438.56, 245,151.18 and 45,106.86

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Solution

The fourth proportional to 163,438.56, 245,151.18 and 45,106.86 is: 67,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,438.56 : 245,151.18 = 45,106.86 : x
  2. Step 2: Convert to fraction form
    163,438.56/245,151.18 = 45,106.86/x
  3. Step 3: Cross multiply
    163,438.56x = 245,151.18 × 45,106.86
  4. Step 4: Simplify right side
    163,438.56x = 11,057,999,955.09
  5. Step 5: Solve for x
    x = 11,057,999,955.09/163,438.56
  6. Step 6: Final answer
    x = 67,658.45

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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.