Home / 125,301,111.51-188,136,169.29-70,077,142.80

Finding the Fourth Proportional to 125,301,111.51, 188,136,169.29 and 70,077,142.80

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Solution

The fourth proportional to 125,301,111.51, 188,136,169.29 and 70,077,142.80 is: 105,218,900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,301,111.51 : 188,136,169.29 = 70,077,142.80 : x
  2. Step 2: Convert to fraction form
    125,301,111.51/188,136,169.29 = 70,077,142.80/x
  3. Step 3: Cross multiply
    125,301,111.51x = 188,136,169.29 × 70,077,142.80
  4. Step 4: Simplify right side
    125,301,111.51x = 13,184,045,201,180,304
  5. Step 5: Solve for x
    x = 13,184,045,201,180,304/125,301,111.51
  6. Step 6: Final answer
    x = 105,218,900.63

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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.