Home / 154,828.02-213,665.10-86,860.10

Finding the Fourth Proportional to 154,828.02, 213,665.10 and 86,860.10

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Solution

The fourth proportional to 154,828.02, 213,665.10 and 86,860.10 is: 119,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,828.02 : 213,665.10 = 86,860.10 : x
  2. Step 2: Convert to fraction form
    154,828.02/213,665.10 = 86,860.10/x
  3. Step 3: Cross multiply
    154,828.02x = 213,665.10 × 86,860.10
  4. Step 4: Simplify right side
    154,828.02x = 18,558,971,952.51
  5. Step 5: Solve for x
    x = 18,558,971,952.51/154,828.02
  6. Step 6: Final answer
    x = 119,868.30

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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.