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Finding the Fourth Proportional to 152,203.91, 210,027.10 and 103,045.54

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Solution

The fourth proportional to 152,203.91, 210,027.10 and 103,045.54 is: 142,193.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,203.91 : 210,027.10 = 103,045.54 : x
  2. Step 2: Convert to fraction form
    152,203.91/210,027.10 = 103,045.54/x
  3. Step 3: Cross multiply
    152,203.91x = 210,027.10 × 103,045.54
  4. Step 4: Simplify right side
    152,203.91x = 21,642,354,368.77
  5. Step 5: Solve for x
    x = 21,642,354,368.77/152,203.91
  6. Step 6: Final answer
    x = 142,193.16

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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.