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Finding the Fourth Proportional to 152,671.65, 210,699.80 and 84,710.49

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Solution

The fourth proportional to 152,671.65, 210,699.80 and 84,710.49 is: 116,907.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,671.65 : 210,699.80 = 84,710.49 : x
  2. Step 2: Convert to fraction form
    152,671.65/210,699.80 = 84,710.49/x
  3. Step 3: Cross multiply
    152,671.65x = 210,699.80 × 84,710.49
  4. Step 4: Simplify right side
    152,671.65x = 17,848,483,300.90
  5. Step 5: Solve for x
    x = 17,848,483,300.90/152,671.65
  6. Step 6: Final answer
    x = 116,907.65

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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.