Home / 97,368.20-145,347.94-85,558.40

Finding the Fourth Proportional to 97,368.20, 145,347.94 and 85,558.40

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Solution

The fourth proportional to 97,368.20, 145,347.94 and 85,558.40 is: 127,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,368.20 : 145,347.94 = 85,558.40 : x
  2. Step 2: Convert to fraction form
    97,368.20/145,347.94 = 85,558.40/x
  3. Step 3: Cross multiply
    97,368.20x = 145,347.94 × 85,558.40
  4. Step 4: Simplify right side
    97,368.20x = 12,435,737,189.70
  5. Step 5: Solve for x
    x = 12,435,737,189.70/97,368.20
  6. Step 6: Final answer
    x = 127,718.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.