Home / 147,970.32-222,005.16-81,325.68

Finding the Fourth Proportional to 147,970.32, 222,005.16 and 81,325.68

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Solution

The fourth proportional to 147,970.32, 222,005.16 and 81,325.68 is: 122,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,970.32 : 222,005.16 = 81,325.68 : x
  2. Step 2: Convert to fraction form
    147,970.32/222,005.16 = 81,325.68/x
  3. Step 3: Cross multiply
    147,970.32x = 222,005.16 × 81,325.68
  4. Step 4: Simplify right side
    147,970.32x = 18,054,720,600.51
  5. Step 5: Solve for x
    x = 18,054,720,600.51/147,970.32
  6. Step 6: Final answer
    x = 122,015.82

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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.