Home / 245,038.14-367,323.93-78,709.50

Finding the Fourth Proportional to 245,038.14, 367,323.93 and 78,709.50

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Solution

The fourth proportional to 245,038.14, 367,323.93 and 78,709.50 is: 117,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,038.14 : 367,323.93 = 78,709.50 : x
  2. Step 2: Convert to fraction form
    245,038.14/367,323.93 = 78,709.50/x
  3. Step 3: Cross multiply
    245,038.14x = 367,323.93 × 78,709.50
  4. Step 4: Simplify right side
    245,038.14x = 28,911,882,868.34
  5. Step 5: Solve for x
    x = 28,911,882,868.34/245,038.14
  6. Step 6: Final answer
    x = 117,989.32

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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.