Home / 105,190.08-145,167.75-64,341.40

Finding the Fourth Proportional to 105,190.08, 145,167.75 and 64,341.40

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Solution

The fourth proportional to 105,190.08, 145,167.75 and 64,341.40 is: 88,794.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,190.08 : 145,167.75 = 64,341.40 : x
  2. Step 2: Convert to fraction form
    105,190.08/145,167.75 = 64,341.40/x
  3. Step 3: Cross multiply
    105,190.08x = 145,167.75 × 64,341.40
  4. Step 4: Simplify right side
    105,190.08x = 9,340,296,269.85
  5. Step 5: Solve for x
    x = 9,340,296,269.85/105,190.08
  6. Step 6: Final answer
    x = 88,794.46

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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.