Home / 102,973.63-142,096.73-57,643.95

Finding the Fourth Proportional to 102,973.63, 142,096.73 and 57,643.95

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Solution

The fourth proportional to 102,973.63, 142,096.73 and 57,643.95 is: 79,544.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,973.63 : 142,096.73 = 57,643.95 : x
  2. Step 2: Convert to fraction form
    102,973.63/142,096.73 = 57,643.95/x
  3. Step 3: Cross multiply
    102,973.63x = 142,096.73 × 57,643.95
  4. Step 4: Simplify right side
    102,973.63x = 8,191,017,368.17
  5. Step 5: Solve for x
    x = 8,191,017,368.17/102,973.63
  6. Step 6: Final answer
    x = 79,544.81

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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.