Home / 146,038.60-201,533.48-78,970.60

Finding the Fourth Proportional to 146,038.60, 201,533.48 and 78,970.60

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Solution

The fourth proportional to 146,038.60, 201,533.48 and 78,970.60 is: 108,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,038.60 : 201,533.48 = 78,970.60 : x
  2. Step 2: Convert to fraction form
    146,038.60/201,533.48 = 78,970.60/x
  3. Step 3: Cross multiply
    146,038.60x = 201,533.48 × 78,970.60
  4. Step 4: Simplify right side
    146,038.60x = 15,915,219,835.69
  5. Step 5: Solve for x
    x = 15,915,219,835.69/146,038.60
  6. Step 6: Final answer
    x = 108,979.54

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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.