Home / 248,307.12-342,669.96-135,136.08

Finding the Fourth Proportional to 248,307.12, 342,669.96 and 135,136.08

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Solution

The fourth proportional to 248,307.12, 342,669.96 and 135,136.08 is: 186,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,307.12 : 342,669.96 = 135,136.08 : x
  2. Step 2: Convert to fraction form
    248,307.12/342,669.96 = 135,136.08/x
  3. Step 3: Cross multiply
    248,307.12x = 342,669.96 × 135,136.08
  4. Step 4: Simplify right side
    248,307.12x = 46,307,075,128.16
  5. Step 5: Solve for x
    x = 46,307,075,128.16/248,307.12
  6. Step 6: Final answer
    x = 186,491.13

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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.