Home / 143,572.51-215,389.53-43,740.75

Finding the Fourth Proportional to 143,572.51, 215,389.53 and 43,740.75

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Solution

The fourth proportional to 143,572.51, 215,389.53 and 43,740.75 is: 65,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,572.51 : 215,389.53 = 43,740.75 : x
  2. Step 2: Convert to fraction form
    143,572.51/215,389.53 = 43,740.75/x
  3. Step 3: Cross multiply
    143,572.51x = 215,389.53 × 43,740.75
  4. Step 4: Simplify right side
    143,572.51x = 9,421,298,398.05
  5. Step 5: Solve for x
    x = 9,421,298,398.05/143,572.51
  6. Step 6: Final answer
    x = 65,620.49

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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.