Home / 118,741.08-178,111.62-53,031

Finding the Fourth Proportional to 118,741.08, 178,111.62 and 53,031

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Solution

The fourth proportional to 118,741.08, 178,111.62 and 53,031 is: 79,546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,741.08 : 178,111.62 = 53,031 : x
  2. Step 2: Convert to fraction form
    118,741.08/178,111.62 = 53,031/x
  3. Step 3: Cross multiply
    118,741.08x = 178,111.62 × 53,031
  4. Step 4: Simplify right side
    118,741.08x = 9,445,437,320.22
  5. Step 5: Solve for x
    x = 9,445,437,320.22/118,741.08
  6. Step 6: Final answer
    x = 79,546.50

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1.5x scale

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.