Home / 151,042.71-208,435.53-82,130.67

Finding the Fourth Proportional to 151,042.71, 208,435.53 and 82,130.67

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Solution

The fourth proportional to 151,042.71, 208,435.53 and 82,130.67 is: 113,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,042.71 : 208,435.53 = 82,130.67 : x
  2. Step 2: Convert to fraction form
    151,042.71/208,435.53 = 82,130.67/x
  3. Step 3: Cross multiply
    151,042.71x = 208,435.53 × 82,130.67
  4. Step 4: Simplify right side
    151,042.71x = 17,118,949,730.71
  5. Step 5: Solve for x
    x = 17,118,949,730.71/151,042.71
  6. Step 6: Final answer
    x = 113,338.47

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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.