Home / 236,112.90-325,839.81-128,688.81

Finding the Fourth Proportional to 236,112.90, 325,839.81 and 128,688.81

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Solution

The fourth proportional to 236,112.90, 325,839.81 and 128,688.81 is: 177,592.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,112.90 : 325,839.81 = 128,688.81 : x
  2. Step 2: Convert to fraction form
    236,112.90/325,839.81 = 128,688.81/x
  3. Step 3: Cross multiply
    236,112.90x = 325,839.81 × 128,688.81
  4. Step 4: Simplify right side
    236,112.90x = 41,931,937,399.53
  5. Step 5: Solve for x
    x = 41,931,937,399.53/236,112.90
  6. Step 6: Final answer
    x = 177,592.74

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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.