Home / 153,898.23-212,467.89-117,312.45

Finding the Fourth Proportional to 153,898.23, 212,467.89 and 117,312.45

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Solution

The fourth proportional to 153,898.23, 212,467.89 and 117,312.45 is: 161,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,898.23 : 212,467.89 = 117,312.45 : x
  2. Step 2: Convert to fraction form
    153,898.23/212,467.89 = 117,312.45/x
  3. Step 3: Cross multiply
    153,898.23x = 212,467.89 × 117,312.45
  4. Step 4: Simplify right side
    153,898.23x = 24,925,128,722.23
  5. Step 5: Solve for x
    x = 24,925,128,722.23/153,898.23
  6. Step 6: Final answer
    x = 161,958.51

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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.