Home / 147,548.51-203,570.78-87,140.53

Finding the Fourth Proportional to 147,548.51, 203,570.78 and 87,140.53

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Solution

The fourth proportional to 147,548.51, 203,570.78 and 87,140.53 is: 120,226.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,548.51 : 203,570.78 = 87,140.53 : x
  2. Step 2: Convert to fraction form
    147,548.51/203,570.78 = 87,140.53/x
  3. Step 3: Cross multiply
    147,548.51x = 203,570.78 × 87,140.53
  4. Step 4: Simplify right side
    147,548.51x = 17,739,265,661.71
  5. Step 5: Solve for x
    x = 17,739,265,661.71/147,548.51
  6. Step 6: Final answer
    x = 120,226.67

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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.