Home / 142,740.48-214,121.34-42,892.68

Finding the Fourth Proportional to 142,740.48, 214,121.34 and 42,892.68

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Solution

The fourth proportional to 142,740.48, 214,121.34 and 42,892.68 is: 64,342.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,740.48 : 214,121.34 = 42,892.68 : x
  2. Step 2: Convert to fraction form
    142,740.48/214,121.34 = 42,892.68/x
  3. Step 3: Cross multiply
    142,740.48x = 214,121.34 × 42,892.68
  4. Step 4: Simplify right side
    142,740.48x = 9,184,238,117.79
  5. Step 5: Solve for x
    x = 9,184,238,117.79/142,740.48
  6. Step 6: Final answer
    x = 64,342.21

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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.