Home / 459,629.94-689,445.12-144,111.45

Finding the Fourth Proportional to 459,629.94, 689,445.12 and 144,111.45

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Solution

The fourth proportional to 459,629.94, 689,445.12 and 144,111.45 is: 216,167.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,629.94 : 689,445.12 = 144,111.45 : x
  2. Step 2: Convert to fraction form
    459,629.94/689,445.12 = 144,111.45/x
  3. Step 3: Cross multiply
    459,629.94x = 689,445.12 × 144,111.45
  4. Step 4: Simplify right side
    459,629.94x = 99,356,937,301.96
  5. Step 5: Solve for x
    x = 99,356,937,301.96/459,629.94
  6. Step 6: Final answer
    x = 216,167.24

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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.