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Finding the Fourth Proportional to 152,649.52, 210,669.32 and 84,688.39

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Solution

The fourth proportional to 152,649.52, 210,669.32 and 84,688.39 is: 116,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,649.52 : 210,669.32 = 84,688.39 : x
  2. Step 2: Convert to fraction form
    152,649.52/210,669.32 = 84,688.39/x
  3. Step 3: Cross multiply
    152,649.52x = 210,669.32 × 84,688.39
  4. Step 4: Simplify right side
    152,649.52x = 17,841,245,533.19
  5. Step 5: Solve for x
    x = 17,841,245,533.19/152,649.52
  6. Step 6: Final answer
    x = 116,877.18

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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.