Home / 150,802.70-208,061.06-87,117.26

Finding the Fourth Proportional to 150,802.70, 208,061.06 and 87,117.26

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Solution

The fourth proportional to 150,802.70, 208,061.06 and 87,117.26 is: 120,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,802.70 : 208,061.06 = 87,117.26 : x
  2. Step 2: Convert to fraction form
    150,802.70/208,061.06 = 87,117.26/x
  3. Step 3: Cross multiply
    150,802.70x = 208,061.06 × 87,117.26
  4. Step 4: Simplify right side
    150,802.70x = 18,125,709,459.90
  5. Step 5: Solve for x
    x = 18,125,709,459.90/150,802.70
  6. Step 6: Final answer
    x = 120,194.86

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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.