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Finding the Fourth Proportional to 93,004.80, 139,852.80 and 77,798.40

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Solution

The fourth proportional to 93,004.80, 139,852.80 and 77,798.40 is: 116,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,004.80 : 139,852.80 = 77,798.40 : x
  2. Step 2: Convert to fraction form
    93,004.80/139,852.80 = 77,798.40/x
  3. Step 3: Cross multiply
    93,004.80x = 139,852.80 × 77,798.40
  4. Step 4: Simplify right side
    93,004.80x = 10,880,324,075.52
  5. Step 5: Solve for x
    x = 10,880,324,075.52/93,004.80
  6. Step 6: Final answer
    x = 116,986.69

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1.5x scale

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.