Home / 124,143,111.63-171,317,495.07-69,138,968.13

Finding the Fourth Proportional to 124,143,111.63, 171,317,495.07 and 69,138,968.13

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Solution

The fourth proportional to 124,143,111.63, 171,317,495.07 and 69,138,968.13 is: 95,411,776.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,143,111.63 : 171,317,495.07 = 69,138,968.13 : x
  2. Step 2: Convert to fraction form
    124,143,111.63/171,317,495.07 = 69,138,968.13/x
  3. Step 3: Cross multiply
    124,143,111.63x = 171,317,495.07 × 69,138,968.13
  4. Step 4: Simplify right side
    124,143,111.63x = 11,844,714,831,756,160
  5. Step 5: Solve for x
    x = 11,844,714,831,756,160/124,143,111.63
  6. Step 6: Final answer
    x = 95,411,776.59

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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.