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Finding the Fourth Proportional to 141,804.10, 212,706.15 and 70,945.30

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Solution

The fourth proportional to 141,804.10, 212,706.15 and 70,945.30 is: 106,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,804.10 : 212,706.15 = 70,945.30 : x
  2. Step 2: Convert to fraction form
    141,804.10/212,706.15 = 70,945.30/x
  3. Step 3: Cross multiply
    141,804.10x = 212,706.15 × 70,945.30
  4. Step 4: Simplify right side
    141,804.10x = 15,090,501,623.60
  5. Step 5: Solve for x
    x = 15,090,501,623.60/141,804.10
  6. Step 6: Final answer
    x = 106,417.95

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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.