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Finding the Fourth Proportional to 126,400.56, 189,656.16 and 59,888.16

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Solution

The fourth proportional to 126,400.56, 189,656.16 and 59,888.16 is: 89,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,400.56 : 189,656.16 = 59,888.16 : x
  2. Step 2: Convert to fraction form
    126,400.56/189,656.16 = 59,888.16/x
  3. Step 3: Cross multiply
    126,400.56x = 189,656.16 × 59,888.16
  4. Step 4: Simplify right side
    126,400.56x = 11,358,158,455.07
  5. Step 5: Solve for x
    x = 11,358,158,455.07/126,400.56
  6. Step 6: Final answer
    x = 89,858.45

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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.