Home / 105,145.02-145,103.40-59,829.57

Finding the Fourth Proportional to 105,145.02, 145,103.40 and 59,829.57

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Solution

The fourth proportional to 105,145.02, 145,103.40 and 59,829.57 is: 82,566.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,145.02 : 145,103.40 = 59,829.57 : x
  2. Step 2: Convert to fraction form
    105,145.02/145,103.40 = 59,829.57/x
  3. Step 3: Cross multiply
    105,145.02x = 145,103.40 × 59,829.57
  4. Step 4: Simplify right side
    105,145.02x = 8,681,474,027.54
  5. Step 5: Solve for x
    x = 8,681,474,027.54/105,145.02
  6. Step 6: Final answer
    x = 82,566.67

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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.