Home / 150,547.51-207,740.60-86,905.81

Finding the Fourth Proportional to 150,547.51, 207,740.60 and 86,905.81

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Solution

The fourth proportional to 150,547.51, 207,740.60 and 86,905.81 is: 119,921.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,547.51 : 207,740.60 = 86,905.81 : x
  2. Step 2: Convert to fraction form
    150,547.51/207,740.60 = 86,905.81/x
  3. Step 3: Cross multiply
    150,547.51x = 207,740.60 × 86,905.81
  4. Step 4: Simplify right side
    150,547.51x = 18,053,864,678.36
  5. Step 5: Solve for x
    x = 18,053,864,678.36/150,547.51
  6. Step 6: Final answer
    x = 119,921.38

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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.