Home / 146,038.35-201,532.86-78,970.35

Finding the Fourth Proportional to 146,038.35, 201,532.86 and 78,970.35

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Solution

The fourth proportional to 146,038.35, 201,532.86 and 78,970.35 is: 108,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,038.35 : 201,532.86 = 78,970.35 : x
  2. Step 2: Convert to fraction form
    146,038.35/201,532.86 = 78,970.35/x
  3. Step 3: Cross multiply
    146,038.35x = 201,532.86 × 78,970.35
  4. Step 4: Simplify right side
    146,038.35x = 15,915,120,490.70
  5. Step 5: Solve for x
    x = 15,915,120,490.70/146,038.35
  6. Step 6: Final answer
    x = 108,979.05

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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.