Home / 153,386.22-211,671.26-85,401.72

Finding the Fourth Proportional to 153,386.22, 211,671.26 and 85,401.72

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Solution

The fourth proportional to 153,386.22, 211,671.26 and 85,401.72 is: 117,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,386.22 : 211,671.26 = 85,401.72 : x
  2. Step 2: Convert to fraction form
    153,386.22/211,671.26 = 85,401.72/x
  3. Step 3: Cross multiply
    153,386.22x = 211,671.26 × 85,401.72
  4. Step 4: Simplify right side
    153,386.22x = 18,077,089,678.57
  5. Step 5: Solve for x
    x = 18,077,089,678.57/153,386.22
  6. Step 6: Final answer
    x = 117,853.41

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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.