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Finding the Fourth Proportional to 189,030.16, 260,862.42 and 104,147.22

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Solution

The fourth proportional to 189,030.16, 260,862.42 and 104,147.22 is: 143,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,030.16 : 260,862.42 = 104,147.22 : x
  2. Step 2: Convert to fraction form
    189,030.16/260,862.42 = 104,147.22/x
  3. Step 3: Cross multiply
    189,030.16x = 260,862.42 × 104,147.22
  4. Step 4: Simplify right side
    189,030.16x = 27,168,095,845.47
  5. Step 5: Solve for x
    x = 27,168,095,845.47/189,030.16
  6. Step 6: Final answer
    x = 143,723.60

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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.