Home / 147,123.48-203,035.02-90,567.48

Finding the Fourth Proportional to 147,123.48, 203,035.02 and 90,567.48

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Solution

The fourth proportional to 147,123.48, 203,035.02 and 90,567.48 is: 124,985.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,123.48 : 203,035.02 = 90,567.48 : x
  2. Step 2: Convert to fraction form
    147,123.48/203,035.02 = 90,567.48/x
  3. Step 3: Cross multiply
    147,123.48x = 203,035.02 × 90,567.48
  4. Step 4: Simplify right side
    147,123.48x = 18,388,370,113.15
  5. Step 5: Solve for x
    x = 18,388,370,113.15/147,123.48
  6. Step 6: Final answer
    x = 124,985.96

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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.