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Finding the Fourth Proportional to 94,510.40, 141,765.60 and 85,762.40

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Solution

The fourth proportional to 94,510.40, 141,765.60 and 85,762.40 is: 128,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,510.40 : 141,765.60 = 85,762.40 : x
  2. Step 2: Convert to fraction form
    94,510.40/141,765.60 = 85,762.40/x
  3. Step 3: Cross multiply
    94,510.40x = 141,765.60 × 85,762.40
  4. Step 4: Simplify right side
    94,510.40x = 12,158,158,093.44
  5. Step 5: Solve for x
    x = 12,158,158,093.44/94,510.40
  6. Step 6: Final answer
    x = 128,643.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.