Home / 162,741.12-244,111.74-78,485.58

Finding the Fourth Proportional to 162,741.12, 244,111.74 and 78,485.58

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Solution

The fourth proportional to 162,741.12, 244,111.74 and 78,485.58 is: 117,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,741.12 : 244,111.74 = 78,485.58 : x
  2. Step 2: Convert to fraction form
    162,741.12/244,111.74 = 78,485.58/x
  3. Step 3: Cross multiply
    162,741.12x = 244,111.74 × 78,485.58
  4. Step 4: Simplify right side
    162,741.12x = 19,159,251,498.71
  5. Step 5: Solve for x
    x = 19,159,251,498.71/162,741.12
  6. Step 6: Final answer
    x = 117,728.40

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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.