Home / 151,343.47-208,855.40-83,360.69

Finding the Fourth Proportional to 151,343.47, 208,855.40 and 83,360.69

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Solution

The fourth proportional to 151,343.47, 208,855.40 and 83,360.69 is: 115,038.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,343.47 : 208,855.40 = 83,360.69 : x
  2. Step 2: Convert to fraction form
    151,343.47/208,855.40 = 83,360.69/x
  3. Step 3: Cross multiply
    151,343.47x = 208,855.40 × 83,360.69
  4. Step 4: Simplify right side
    151,343.47x = 17,410,330,254.23
  5. Step 5: Solve for x
    x = 17,410,330,254.23/151,343.47
  6. Step 6: Final answer
    x = 115,038.53

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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.