Home / 455,931.09-683,897.17-118,971.50

Finding the Fourth Proportional to 455,931.09, 683,897.17 and 118,971.50

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Solution

The fourth proportional to 455,931.09, 683,897.17 and 118,971.50 is: 178,457.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,931.09 : 683,897.17 = 118,971.50 : x
  2. Step 2: Convert to fraction form
    455,931.09/683,897.17 = 118,971.50/x
  3. Step 3: Cross multiply
    455,931.09x = 683,897.17 × 118,971.50
  4. Step 4: Simplify right side
    455,931.09x = 81,364,272,160.66
  5. Step 5: Solve for x
    x = 81,364,272,160.66/455,931.09
  6. Step 6: Final answer
    x = 178,457.39

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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.