Home / 153,453.02-211,774.84-86,389.34

Finding the Fourth Proportional to 153,453.02, 211,774.84 and 86,389.34

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Solution

The fourth proportional to 153,453.02, 211,774.84 and 86,389.34 is: 119,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,453.02 : 211,774.84 = 86,389.34 : x
  2. Step 2: Convert to fraction form
    153,453.02/211,774.84 = 86,389.34/x
  3. Step 3: Cross multiply
    153,453.02x = 211,774.84 × 86,389.34
  4. Step 4: Simplify right side
    153,453.02x = 18,295,087,381.36
  5. Step 5: Solve for x
    x = 18,295,087,381.36/153,453.02
  6. Step 6: Final answer
    x = 119,222.73

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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.