Home / 151,511.10-209,075.47-83,528.64

Finding the Fourth Proportional to 151,511.10, 209,075.47 and 83,528.64

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Solution

The fourth proportional to 151,511.10, 209,075.47 and 83,528.64 is: 115,264.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,511.10 : 209,075.47 = 83,528.64 : x
  2. Step 2: Convert to fraction form
    151,511.10/209,075.47 = 83,528.64/x
  3. Step 3: Cross multiply
    151,511.10x = 209,075.47 × 83,528.64
  4. Step 4: Simplify right side
    151,511.10x = 17,463,789,666.46
  5. Step 5: Solve for x
    x = 17,463,789,666.46/151,511.10
  6. Step 6: Final answer
    x = 115,264.09

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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.