Home / 102,678.61-154,056.14-62,779.36

Finding the Fourth Proportional to 102,678.61, 154,056.14 and 62,779.36

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Solution

The fourth proportional to 102,678.61, 154,056.14 and 62,779.36 is: 94,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,678.61 : 154,056.14 = 62,779.36 : x
  2. Step 2: Convert to fraction form
    102,678.61/154,056.14 = 62,779.36/x
  3. Step 3: Cross multiply
    102,678.61x = 154,056.14 × 62,779.36
  4. Step 4: Simplify right side
    102,678.61x = 9,671,545,873.27
  5. Step 5: Solve for x
    x = 9,671,545,873.27/102,678.61
  6. Step 6: Final answer
    x = 94,192.41

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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.