Home / 190,790.10-286,075.80-57,650.40

Finding the Fourth Proportional to 190,790.10, 286,075.80 and 57,650.40

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Solution

The fourth proportional to 190,790.10, 286,075.80 and 57,650.40 is: 86,442.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,790.10 : 286,075.80 = 57,650.40 : x
  2. Step 2: Convert to fraction form
    190,790.10/286,075.80 = 57,650.40/x
  3. Step 3: Cross multiply
    190,790.10x = 286,075.80 × 57,650.40
  4. Step 4: Simplify right side
    190,790.10x = 16,492,384,300.32
  5. Step 5: Solve for x
    x = 16,492,384,300.32/190,790.10
  6. Step 6: Final answer
    x = 86,442.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.