Home / 145,224.03-217,520.60-70,186.81

Finding the Fourth Proportional to 145,224.03, 217,520.60 and 70,186.81

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Solution

The fourth proportional to 145,224.03, 217,520.60 and 70,186.81 is: 105,127.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,224.03 : 217,520.60 = 70,186.81 : x
  2. Step 2: Convert to fraction form
    145,224.03/217,520.60 = 70,186.81/x
  3. Step 3: Cross multiply
    145,224.03x = 217,520.60 × 70,186.81
  4. Step 4: Simplify right side
    145,224.03x = 15,267,076,128.55
  5. Step 5: Solve for x
    x = 15,267,076,128.55/145,224.03
  6. Step 6: Final answer
    x = 105,127.75

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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.