Home / 230,070.20-345,299.70-89,929.40

Finding the Fourth Proportional to 230,070.20, 345,299.70 and 89,929.40

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Solution

The fourth proportional to 230,070.20, 345,299.70 and 89,929.40 is: 134,970.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,070.20 : 345,299.70 = 89,929.40 : x
  2. Step 2: Convert to fraction form
    230,070.20/345,299.70 = 89,929.40/x
  3. Step 3: Cross multiply
    230,070.20x = 345,299.70 × 89,929.40
  4. Step 4: Simplify right side
    230,070.20x = 31,052,594,841.18
  5. Step 5: Solve for x
    x = 31,052,594,841.18/230,070.20
  6. Step 6: Final answer
    x = 134,970.09

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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.