Home / 189,378.12-284,445.60-118,426.96

Finding the Fourth Proportional to 189,378.12, 284,445.60 and 118,426.96

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Solution

The fourth proportional to 189,378.12, 284,445.60 and 118,426.96 is: 177,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,378.12 : 284,445.60 = 118,426.96 : x
  2. Step 2: Convert to fraction form
    189,378.12/284,445.60 = 118,426.96/x
  3. Step 3: Cross multiply
    189,378.12x = 284,445.60 × 118,426.96
  4. Step 4: Simplify right side
    189,378.12x = 33,686,027,693.38
  5. Step 5: Solve for x
    x = 33,686,027,693.38/189,378.12
  6. Step 6: Final answer
    x = 177,877.08

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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.