Home / 133,439.52-183,934.80-105,100.32

Finding the Fourth Proportional to 133,439.52, 183,934.80 and 105,100.32

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Solution

The fourth proportional to 133,439.52, 183,934.80 and 105,100.32 is: 144,871.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,439.52 : 183,934.80 = 105,100.32 : x
  2. Step 2: Convert to fraction form
    133,439.52/183,934.80 = 105,100.32/x
  3. Step 3: Cross multiply
    133,439.52x = 183,934.80 × 105,100.32
  4. Step 4: Simplify right side
    133,439.52x = 19,331,606,339.14
  5. Step 5: Solve for x
    x = 19,331,606,339.14/133,439.52
  6. Step 6: Final answer
    x = 144,871.67

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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.