Home / 153,192.21-211,405.23-86,124.21

Finding the Fourth Proportional to 153,192.21, 211,405.23 and 86,124.21

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Solution

The fourth proportional to 153,192.21, 211,405.23 and 86,124.21 is: 118,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,192.21 : 211,405.23 = 86,124.21 : x
  2. Step 2: Convert to fraction form
    153,192.21/211,405.23 = 86,124.21/x
  3. Step 3: Cross multiply
    153,192.21x = 211,405.23 × 86,124.21
  4. Step 4: Simplify right side
    153,192.21x = 18,207,108,423.62
  5. Step 5: Solve for x
    x = 18,207,108,423.62/153,192.21
  6. Step 6: Final answer
    x = 118,851.40

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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.