Home / 149,547.47-206,407.44-85,920.35

Finding the Fourth Proportional to 149,547.47, 206,407.44 and 85,920.35

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Solution

The fourth proportional to 149,547.47, 206,407.44 and 85,920.35 is: 118,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,547.47 : 206,407.44 = 85,920.35 : x
  2. Step 2: Convert to fraction form
    149,547.47/206,407.44 = 85,920.35/x
  3. Step 3: Cross multiply
    149,547.47x = 206,407.44 × 85,920.35
  4. Step 4: Simplify right side
    149,547.47x = 17,734,598,455.37
  5. Step 5: Solve for x
    x = 17,734,598,455.37/149,547.47
  6. Step 6: Final answer
    x = 118,588.43

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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.