Home / 189,547.35-261,362.09-154,984.25

Finding the Fourth Proportional to 189,547.35, 261,362.09 and 154,984.25

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Solution

The fourth proportional to 189,547.35, 261,362.09 and 154,984.25 is: 213,703.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,547.35 : 261,362.09 = 154,984.25 : x
  2. Step 2: Convert to fraction form
    189,547.35/261,362.09 = 154,984.25/x
  3. Step 3: Cross multiply
    189,547.35x = 261,362.09 × 154,984.25
  4. Step 4: Simplify right side
    189,547.35x = 40,507,005,415.35
  5. Step 5: Solve for x
    x = 40,507,005,415.35/189,547.35
  6. Step 6: Final answer
    x = 213,703.89

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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.