Home / 142,802.24-197,072.34-86,202.68

Finding the Fourth Proportional to 142,802.24, 197,072.34 and 86,202.68

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Solution

The fourth proportional to 142,802.24, 197,072.34 and 86,202.68 is: 118,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,802.24 : 197,072.34 = 86,202.68 : x
  2. Step 2: Convert to fraction form
    142,802.24/197,072.34 = 86,202.68/x
  3. Step 3: Cross multiply
    142,802.24x = 197,072.34 × 86,202.68
  4. Step 4: Simplify right side
    142,802.24x = 16,988,163,861.87
  5. Step 5: Solve for x
    x = 16,988,163,861.87/142,802.24
  6. Step 6: Final answer
    x = 118,962.87

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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.