Home / 210,741.84-316,047-70,467.72

Finding the Fourth Proportional to 210,741.84, 316,047 and 70,467.72

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Solution

The fourth proportional to 210,741.84, 316,047 and 70,467.72 is: 105,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,741.84 : 316,047 = 70,467.72 : x
  2. Step 2: Convert to fraction form
    210,741.84/316,047 = 70,467.72/x
  3. Step 3: Cross multiply
    210,741.84x = 316,047 × 70,467.72
  4. Step 4: Simplify right side
    210,741.84x = 22,271,111,502.84
  5. Step 5: Solve for x
    x = 22,271,111,502.84/210,741.84
  6. Step 6: Final answer
    x = 105,679.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.