Home / 236,327.81-326,132.18-128,897.51

Finding the Fourth Proportional to 236,327.81, 326,132.18 and 128,897.51

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Solution

The fourth proportional to 236,327.81, 326,132.18 and 128,897.51 is: 177,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,327.81 : 326,132.18 = 128,897.51 : x
  2. Step 2: Convert to fraction form
    236,327.81/326,132.18 = 128,897.51/x
  3. Step 3: Cross multiply
    236,327.81x = 326,132.18 × 128,897.51
  4. Step 4: Simplify right side
    236,327.81x = 42,037,624,473.05
  5. Step 5: Solve for x
    x = 42,037,624,473.05/236,327.81
  6. Step 6: Final answer
    x = 177,878.45

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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.