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Finding the Fourth Proportional to 145,460.58, 200,763.24 and 91,038.05

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Solution

The fourth proportional to 145,460.58, 200,763.24 and 91,038.05 is: 125,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,460.58 : 200,763.24 = 91,038.05 : x
  2. Step 2: Convert to fraction form
    145,460.58/200,763.24 = 91,038.05/x
  3. Step 3: Cross multiply
    145,460.58x = 200,763.24 × 91,038.05
  4. Step 4: Simplify right side
    145,460.58x = 18,277,093,881.28
  5. Step 5: Solve for x
    x = 18,277,093,881.28/145,460.58
  6. Step 6: Final answer
    x = 125,649.81

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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.