Home / 134,010.51-185,021.05-83,077.67

Finding the Fourth Proportional to 134,010.51, 185,021.05 and 83,077.67

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Solution

The fourth proportional to 134,010.51, 185,021.05 and 83,077.67 is: 114,700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,010.51 : 185,021.05 = 83,077.67 : x
  2. Step 2: Convert to fraction form
    134,010.51/185,021.05 = 83,077.67/x
  3. Step 3: Cross multiply
    134,010.51x = 185,021.05 × 83,077.67
  4. Step 4: Simplify right side
    134,010.51x = 15,371,117,989.81
  5. Step 5: Solve for x
    x = 15,371,117,989.81/134,010.51
  6. Step 6: Final answer
    x = 114,700.84

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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.