Home / 99,285.90-137,017.14-56,858.10

Finding the Fourth Proportional to 99,285.90, 137,017.14 and 56,858.10

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Solution

The fourth proportional to 99,285.90, 137,017.14 and 56,858.10 is: 78,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,285.90 : 137,017.14 = 56,858.10 : x
  2. Step 2: Convert to fraction form
    99,285.90/137,017.14 = 56,858.10/x
  3. Step 3: Cross multiply
    99,285.90x = 137,017.14 × 56,858.10
  4. Step 4: Simplify right side
    99,285.90x = 7,790,534,247.83
  5. Step 5: Solve for x
    x = 7,790,534,247.83/99,285.90
  6. Step 6: Final answer
    x = 78,465.67

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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.