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Finding the Fourth Proportional to 189,050.64, 260,877.72 and 112,575.39

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Solution

The fourth proportional to 189,050.64, 260,877.72 and 112,575.39 is: 155,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,050.64 : 260,877.72 = 112,575.39 : x
  2. Step 2: Convert to fraction form
    189,050.64/260,877.72 = 112,575.39/x
  3. Step 3: Cross multiply
    189,050.64x = 260,877.72 × 112,575.39
  4. Step 4: Simplify right side
    189,050.64x = 29,368,411,071.31
  5. Step 5: Solve for x
    x = 29,368,411,071.31/189,050.64
  6. Step 6: Final answer
    x = 155,346.80

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1.5x scale

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.