Home / 189,525.21-261,545.28-103,484.31

Finding the Fourth Proportional to 189,525.21, 261,545.28 and 103,484.31

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Solution

The fourth proportional to 189,525.21, 261,545.28 and 103,484.31 is: 142,808.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,525.21 : 261,545.28 = 103,484.31 : x
  2. Step 2: Convert to fraction form
    189,525.21/261,545.28 = 103,484.31/x
  3. Step 3: Cross multiply
    189,525.21x = 261,545.28 × 103,484.31
  4. Step 4: Simplify right side
    189,525.21x = 27,065,832,834.56
  5. Step 5: Solve for x
    x = 27,065,832,834.56/189,525.21
  6. Step 6: Final answer
    x = 142,808.62

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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.