Home / 103,166.48-142,431.84-67,416.32

Finding the Fourth Proportional to 103,166.48, 142,431.84 and 67,416.32

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Solution

The fourth proportional to 103,166.48, 142,431.84 and 67,416.32 is: 93,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,166.48 : 142,431.84 = 67,416.32 : x
  2. Step 2: Convert to fraction form
    103,166.48/142,431.84 = 67,416.32/x
  3. Step 3: Cross multiply
    103,166.48x = 142,431.84 × 67,416.32
  4. Step 4: Simplify right side
    103,166.48x = 9,602,230,503.63
  5. Step 5: Solve for x
    x = 9,602,230,503.63/103,166.48
  6. Step 6: Final answer
    x = 93,075.10

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1.5x scale

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.