Home / 139,975.04-193,166.16-89,703.20

Finding the Fourth Proportional to 139,975.04, 193,166.16 and 89,703.20

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Solution

The fourth proportional to 139,975.04, 193,166.16 and 89,703.20 is: 123,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,975.04 : 193,166.16 = 89,703.20 : x
  2. Step 2: Convert to fraction form
    139,975.04/193,166.16 = 89,703.20/x
  3. Step 3: Cross multiply
    139,975.04x = 193,166.16 × 89,703.20
  4. Step 4: Simplify right side
    139,975.04x = 17,327,622,683.71
  5. Step 5: Solve for x
    x = 17,327,622,683.71/139,975.04
  6. Step 6: Final answer
    x = 123,790.80

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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.