Home / 150,929.59-208,270.65-87,271.51

Finding the Fourth Proportional to 150,929.59, 208,270.65 and 87,271.51

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Solution

The fourth proportional to 150,929.59, 208,270.65 and 87,271.51 is: 120,427.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,929.59 : 208,270.65 = 87,271.51 : x
  2. Step 2: Convert to fraction form
    150,929.59/208,270.65 = 87,271.51/x
  3. Step 3: Cross multiply
    150,929.59x = 208,270.65 × 87,271.51
  4. Step 4: Simplify right side
    150,929.59x = 18,176,094,114.18
  5. Step 5: Solve for x
    x = 18,176,094,114.18/150,929.59
  6. Step 6: Final answer
    x = 120,427.64

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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.