Home / 145,111.74-200,247.47-80,585.08

Finding the Fourth Proportional to 145,111.74, 200,247.47 and 80,585.08

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Solution

The fourth proportional to 145,111.74, 200,247.47 and 80,585.08 is: 111,203.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,111.74 : 200,247.47 = 80,585.08 : x
  2. Step 2: Convert to fraction form
    145,111.74/200,247.47 = 80,585.08/x
  3. Step 3: Cross multiply
    145,111.74x = 200,247.47 × 80,585.08
  4. Step 4: Simplify right side
    145,111.74x = 16,136,957,388.51
  5. Step 5: Solve for x
    x = 16,136,957,388.51/145,111.74
  6. Step 6: Final answer
    x = 111,203.67

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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.