Home / 105,220.05-157,830.06-38,631.36

Finding the Fourth Proportional to 105,220.05, 157,830.06 and 38,631.36

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Solution

The fourth proportional to 105,220.05, 157,830.06 and 38,631.36 is: 57,947.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,220.05 : 157,830.06 = 38,631.36 : x
  2. Step 2: Convert to fraction form
    105,220.05/157,830.06 = 38,631.36/x
  3. Step 3: Cross multiply
    105,220.05x = 157,830.06 × 38,631.36
  4. Step 4: Simplify right side
    105,220.05x = 6,097,189,866.68
  5. Step 5: Solve for x
    x = 6,097,189,866.68/105,220.05
  6. Step 6: Final answer
    x = 57,947.03

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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.