Home / 189,510.34-261,513-103,452.16

Finding the Fourth Proportional to 189,510.34, 261,513 and 103,452.16

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Solution

The fourth proportional to 189,510.34, 261,513 and 103,452.16 is: 142,757.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,510.34 : 261,513 = 103,452.16 : x
  2. Step 2: Convert to fraction form
    189,510.34/261,513 = 103,452.16/x
  3. Step 3: Cross multiply
    189,510.34x = 261,513 × 103,452.16
  4. Step 4: Simplify right side
    189,510.34x = 27,054,084,718.08
  5. Step 5: Solve for x
    x = 27,054,084,718.08/189,510.34
  6. Step 6: Final answer
    x = 142,757.83

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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.